Answer:
18,500
Step-by-step explanation:
The sum of three consecutive integers is 915. What are the integers?
A. 304, 306, 308
B. 305, 306, 307
C. 300, 300, 315
D. 304, 305, 306
Answer:
304,305,306
Step-by-step explanation:
x +x+1+x+2=915
3x+3=915
3x=915-3
3x=912
x=304
The three consecutive integers are 304, 305 and 306, option D is correct.
What is Number system?A number system is defined as a system of writing to express numbers.
Let the three consecutive numbers be x, x+1 and x+2
Sum of three consecutive integers is 915.
x+x+1+x+2=915
3x+3=915
Subtract 3 on both sides
3x=912
Divide both sides by 3
x=304
Hence, the three consecutive integers are 304, 305 and 306, option D is correct.
To learn more on Number system click:
https://brainly.com/question/22046046
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Which equation describes the line that passes through points (2,5) and (0,9)?
In a circle, area and circumference can be found using the formulas A=(pi)r^2 and C=2(pi)r, respectively, Write a formula for A in terms of C.(your answer should not contain r)
Answer:
[tex]A = \dfrac{C^2}{4\pi}[/tex]
Step-by-step explanation:
Given that
Area of a circle [tex]A=\pi r^2[/tex]
Circumference of the circle [tex]C = 2 \pi r[/tex]
Let us re-write the equation of area of circle:
[tex]A=\pi r^2[/tex]
[tex]A = \pi \times r \times r[/tex]
Multiplying and dividing with 2:
[tex]A = \dfrac{2\pi r}{2} \times r\\\text{Putting }2\pi r = C:\\\Rightarrow A = \dfrac{C}{2} \times r\\\text{Multiplying and dividing by } 2\pi:\\\Rightarrow A = \dfrac{C}{2} \times \dfrac{2\pi r}{2\pi}\\\text{Putting }2\pi r = C:\\\Rightarrow A = \dfrac{C \times C}{4 \pi}\\\Rightarrow A = \dfrac{C^2}{4 \pi}[/tex]
Hence, A in terms of C can be represented as:
[tex]A = \dfrac{C^2}{4\pi}[/tex]
At the beginning of the month, a rain barrel contained 12 ounces of water. At the end of the month there are 8 1/4 cups of water in the rain barrel.
How many cups of rain water were added to the barrel during the month?
Answer:
The cups of rain water that were added to the barrel during the month is:
6.75 cups.Step-by-step explanation:
First, you must know the conversion units between ounces and cups:
1 cup = 8 ounces.Then, at the beginning of the month, the rain barrel contained 12 ounces, what is in cups:
1 cup = 8 ounces. X = 12 onces.We operate:
X = (12 * 1) / 8 X = 1.5 cupsNow, how at the end of the month there are 8 1/4 cups of water in the rain barrel, in a decimal number it is equal to:
8 1/4 cups = 8.25 cupsTo know what is the cups of rainwater were added to the barrel during the month, you must subtract the number of cups at the beginning of the month to the number of cups at the end of the month:
Cups of rainwater that were added = 8.25 cups - 1.5 cups Cups of rainwater that were added = 6.75 cups.Answer:
6.75
Step-by-step explanation:
i just took the test
If X = 7 units, Y = 4 units, Z = 18 units, and h = 7 units, what is the surface area of the triangular prism shown above?
Answer:
Step-by-step explanation:
Solve for y: 4y = 32 A. y = 4 B. y = 6 C. y = 8 D. y = 9
Answer:
C
Step-by-step explanation:
4y=32
Taking 4 to the other side
y=32/4
y=8
Answer:
c
Step-by-step explanation:
c
Solve for x in the diagram below.
100°
20
2=
Answer:
x = 40
Step-by-step explanation:
The answer is x = 40. This is because the two angles that are x are 1. congruent and 2. supplementary with 100° (They all add up to 180°). I can show this with a simple equation.
1. 2x + 100 = 180
2. 2x = 80
3. x = 40
Hope this helps! (Please consider giving brainliest)
Given that f(x) = x^3 + 2x^2 + 1, g(x) = −x^3 −x^2 −4x+ 4, h(x) = f(x) +g(x), and h(x) = 1, what is the value of x?
Answer:
x = 2
Step-by-step explanation:
h(x) = f(x) + g(x) = x³ + 2x² + 1 - x³ - x² - 4x + 4 ← collect like terms, thus
h(x) = f(x) + g(x) = x² - 4x + 5
Given
h(x) = 1, then
x² - 4x + 5 = 1 ( subtract 1 from both sides )
x² - 4x + 4 = 0 ← in standard form
(x - 2)² = 0 ← in factored form ( perfect square ), thus
x - 2 = 0 ⇒ x = 2
What is the slope of the line given by the equation y= -3x
Answer:
-3
Step-by-step explanation:
The given equation is in slope intercept form.
The form is y=mx+b
This is where "m" is the slope, and "b" is the y intercept.
So in this equation, m=-3.
Therefore, the slope is -3.
What is the image of (6,-4) after a reflection over the y-axis?
Answer:
(-6,-4)
Step-by-step explanation:
Hope this helps! (:
2. The height of a rhombus 8 cm. The area of the rhombus is 72 square centimeters.
What is base of the rhombus?
Answer:
The base of the rhombus is equal to 9 centimeters.
Step-by-step explanation:
To calculate the base of the rhombus, we will follow the steps below;
write the formula for calculating the area of a rhombus
area of a rhombus = b × h
where h is the height of the rhombus and b is the base of the rhombus
From the question given, area of the rhombus = 72 square centimeters and height of the rhombus is 8 centimeters.
we can now proceed to insert the values into the formula and then solve for b
area of a rhombus = b × h
72 = b × 8
Divide both-side of the equation by 8
[tex]\frac{72}{8}[/tex] = b × 8 /8
[tex]\frac{72}{8}[/tex] = b
9 = b
b = 9 centimeters
The base of the rhombus is equal to 9 centimeters.
The volume of a solid cylinder is 1584 cubic cm and its height is 14 cm. The radius is
Answer: 6 cm
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Volume of a cylinder (V): π x radius ² x height
Replacing with the values given and solving for v (Volume)
1584 = π x r ² x 14
Solving for r:
1584 / (π x 14) = r²
36.01 = r²
√36.01 = r
6 cm = r
In conclusion, the radius of the cylinder is 6 centimeters.
Feel free to ask for more if needed or if you did not understand something.
Answer:
The radius is 6 cm
Step-by-step explanation:
To solve this, we will follow the steps below:
write down the formula for finding the volume of a cylinder
volume of a cylinder =πr²h
from the question volume of the cylinder = 1584 cm²
height = 14 cm
substitute the formula and solve for r
π is a constant and is ≈ 3.14
1584 = 3.14×r²×14
1584= 43.96 r²
divide both-side of the equation by 43.96
36≈ r²
take the square root of both-side
√36 = √r²
6 = r
r = 6cm
The radius is 6 cm
Find the value of k to complete the square for the quadratic equation:
y = x2 - 6x + k
Answer:
[tex]\sqrt[/tex]y+5x=k
Step-by-step explanation:
y=x^2-6x+k
y+6x=x^2+k
[tex]\sqrt[/tex]y+6x=x+k
[tex]\sqrt[/tex]y+5x=k
A linear equation written in the form y = mx + c is known as,
a) y-intercept
b) point-slope form
c) standard form
d) slope-intercept form
Answer:
it is a slope intercept form
how how many students hade more than 6 candy bars (use the picture above)
Answer:
About 5 if your are including 6, or just 3.
Step-by-step explanation:
To find it you can just count the numbers greater than 6.
Hope this helps.
brainliest if correct
Answer:
3 Students
Step-by-step explanation:
There is only two more slots for how many candy bars each student has, in the "7" slot there is only one student that has seven candy bars and in the "8" slot there is two students that had eight candy bars.
1+2=3
I hope that helped.
Which value of b would make x^2 + bx- 2 factorable? -2 -1 0 3
Answer:
3
Step-by-step explanation:
Work backwards in this problem:
(x+1)(x+2)
x^2+x+2x+2
x^2+3x+2
b=3
Linda is building steps for her porch. What is the volume of the steps?
144,000 cm3
288,000 cm3
324,000 cm3
540,000 cm3
Answer:
The volume of the steps is:
324,000 cm3Step-by-step explanation:
Remember that the volume regularly is:
Volume = height * width * depth.There are many forms to solve this exercise, but I'll show you two:
1. Imagine that aren't steps but a big solid, then its volume would be:
Volume of big solid = 60 cm * 60 cm * 120 cm Volume of big solid = 432000 cm3Now you can subtract the volume of a small solid with measures 30 cm * 30 cm * 120 cm (where is the blank for the step):
Volume of a small solid = 30 cm * 30 cm * 120 cm Volume of a small solid = 108000 cm3Now you subtract:
Volume of the building steps = 432000 cm3 - 108000 cm3 Volume of the building steps = 324000 cm32. The building steps are formed by three solid with volume 30 cm * 30 cm * 120 cm, so:
Volume of the building steps = 3 (30 cm * 30 cm * 120 cm) Volume of the building steps = 324000 cm3Hi! 15+ points for this! :D
1. Alex has $40, and Ellen has $24. Alex is saving $6 per day, and Ellen is saving $10 day. After how many days will Alex and Ellen have the same amount of money?
2. Kendra owns a restaurant. She charges $6.00 for two eggs and one piece of toast and $3.60 for one egg and one piece of toast. How much does Kendra charge per egg? How much per piece of toast?
3. A restaurant has one type of lemonade that is 30% sugar and another that is 10% sugar. How many gallons of each type does the restraint need to make 4 gallons of a lemonade mixture that is 15% sugar?
4. A scientist has a container of 2% acid solution and a container of 5% acid solution. How many fluid ounces of each concentration should be combined to make 25 fl oz of 3.2% acid solution?
16. The speed of a kayaker is 5.75 mi/h paddling with the river current and 3.25 mi/h paddling against it. What is the speed of the river current?
Susan make $12 per hour babysitting and $24 per hour as a lifeguard. Her goal is to make at least $420. Write an inequality, graph the solution, and list three possible solutions
25. Joe wants to fence a rectangular pen for his goats. The length of the pen should be at least 40 ft, and the distance around should be no more than 150 ft. Write a systems of inequalities and graph to represent the possible dimensions of the pen.
Answer:
1. 4 days
2. $1.2
3. 1 and 3 gallons
4. 15 and 10
16. 1.2 mi/h
-- Please refer to graph
-- Please refer to graph
Step-by-step explanation:
Solution 1.
Alex has $40, and Ellen has $24. Alex is saving $6 per day, and Ellen is saving $10 day.
Let x be the number of days in which they both have same money:
As per given statement:
[tex]40 + 6x=24+10x\\\Rightarrow 4x = 16\\\Rightarrow x =4[/tex]
In 4 days, they will have same money.
Solution 2:
Kendra owns a restaurant. She charges $6.00 for two eggs and one piece of toast and $3.60 for one egg and one piece of toast.
Let x be the price of one egg.
Let y be the price of one toast.
As per given statement:
[tex]2x+y=6 ...... (1)\\x+y= 3.6 ...... (2)[/tex]
Subtracting (2) from (1):
[tex]\Rightarrow x = \$2.4[/tex]
Price of toast = 3.6 - 2.4 = $1.2
Solution 3:
A restaurant has one type of lemonade that is 30% sugar and another that is 10% sugar. Resultant mixture 4 gallons of 15% sugar.
Let x be the amount of lemonade with 30% sugar.
Amount of another lemonade with 10% sugar = (4-x)
As per question statement:
[tex]x \times 30\% + (4-x) \times 10\% = 4 \times 15\%\\\Rightarrow x \times 30 + (4-x) \times 10 = 4 \times 15\\\Rightarrow 20x = 20\\\Rightarrow x = 1[/tex]
Lemonade with 30% sugar required is 1 gallon.
Lemonade with 10% sugar required is 3 gallons.
Solution 4:
A scientist has a container of 2% acid solution and a container of 5% acid solution. Resultant mixture is 25 fl oz of 3.2%.
Let x be the amount of 2% acid solution.
Amount of another lemonade with 5% acid solution = (25-x)
As per given question statement:
[tex]2\%\ of\ x + 5\% \ of\ (25-x) = 3.2\%\ of\ 25\\\Rightarrow 2x + 5(25-x)=3.2 \times 25\\\Rightarrow -3x = -1.8 \times 25\\\Rightarrow x = 15[/tex]
2% acid solution required is 15 fl oz.
5% acid solution required is 10 fl oz.
Solution 16:
Let v be the speed of river current.
Let u be the speed of kayaker.
As per question:
The speed of a kayaker is 5.75 mi/h paddling with the river current and 3.25 mi/h paddling against it.
[tex]u +v=5.75......(1)\\u-v = 3.25.....(2)[/tex]
Equation (1) - (2):
[tex]2v = 2.5\\\Rightarrow v = 1.25\ mi/h[/tex]
----------------------------------
Susan make $12 per hour babysitting and $24 per hour as a lifeguard. Her goal is to make at least $420.
Let x be the number of hours for babysitting.
Let y be the number of hours as lifeguard.
As per given statement:
[tex]12x+24y > 240[/tex]
Please refer to graph attached with file name: Inequality
Three possible solutions: (20,20), (21,21) and (22,22)
----------------------------------
25. Joe wants to fence a rectangular pen for his goats. The length of the pen should be at least 40 ft, and the distance around should be no more than 150 ft
Let x be length
and y be width.
As per statement:
x > 40
And perimeter should be less than equal to 240.
2(x+y) [tex]\leq[/tex] 240
Please refer to attached graph with name: "2EquationInq"
Possible dimensions of pen can be (50,20).
Please help me with this question. Will give 10 points.
Answer:
x = 2.99
Step-by-step explanation:
We can use ratios to solve
5.4 2.6
--------- = ---------
6.21 x
Using cross products
5.4x = 2.6* 6.21
5.4x =16.146
Divide each side by 5.4
5.4x = 16.146/5.4
x = 2.99
FIRST CORRECT ANSWER I WILL GIVE BRANLIEST TO!!
Answer:
X*8=36Hope it helps
Good luck on your assignment
Find the domain of the graphed function. (Please help me)
Answer:
Step-by-step explanation:
I belive it is a .
The GCF of 24 and 32 is
Start by setting up a factor tree for each number.
Factor in anyway that you'd like.
At the end, circle all prime numbers.
Remember, prime numbers are numbers
with only 2 factors, 1 and the number itself.
Now write these factors in least to greatest
multiplying them separate rows.
Circle factors they have in common.
Since 3 pairs of two's match up, multiply by 2 three times to get 8.
So the GCF is 8.
Answer:
8
Step-by-step explanation:
3 multiplied by 8 = 24
and 4 multiplied by 8 = 32
PLEASE can someone help with this??IT IS important
Answer:
1) x=5 so angles are 25°, 80° and 75°
Step-by-step explanation:
The angles of a triangle should add up to 180. So e.g., for the first one, you know that
5x + 16x + 15x = 180
so
36x = 180
x = 5
Answer:
4
Step-by-step explanation:
I, m
please help!!!! I need the answers.
Answer:
Angle A: 40°
Angle B: 50°
Angle C: 90°
Side A: 14
Side B: 12
Side C: 11.2 or 11 if you round to the nearest whole number.
Step-by-step explanation:
Angle A;
Since we know angles B and C we can use those to help us find angle since all three angles should add up to 180°.
90-50=40
Angle A= 40°
Side C;
Since we know all the angles now and the other two side lengths, we will use those to help us find Side C.
cos 40°= C/14
C/14= cos 40°
C/14= .8
C= .8 x 14
C= 11.2
Hope this helps! Have a great day! :)
factorise 9 X square + Y square + Z square - 6 X Y + 2 Y Z - 6 x z hence find its value when X is equals to 1 by equal to 2 and Z = 2 - 1
a) Factor 9x² + y² + z² - 6xy + 2yz - 6xz
This looks a lot like
(x+y+z)² = x² + y² + z²+ 2xy + 2yz + 2xz
except instead of x there's (-3x). So this must be
(-3x+y+z)² = (-3x)² + y² + z² + 2((-3x)y + (-3x)z + yz)
= 9x² + y² + z² - 6xy + 2yz - 6xz
Looks good.
Answer: (-3x+y+z)²
Since it's a square we could also negate the inside and write this (3x-y-z)²
b) I'll guess that says we want to evaluate this when x=1, y=2, z= -1
(-3(1) + 2 -1)² = (-2)² = 4
Answer: 4
Find x in this proportion.
5/2x =25/4
x =
2/5
5/2
4/5
8/5
Answer:
2/5
Step-by-step explanation:
make it reciprocal
2x/5 = 4/25
cross multiply the numbers
2x × 25 = 4×5
2x= 20/25
2x= 4/5
x = 2/5
Ivan has a $500 bond with a 5.8% coupon. Ivan purchased this bond for $515.
What is the yield of this new bond?
Answer:
The yield is 5.974%
Step-by-step explanation:
We proceed as follows ;
coupon rate = Annual coupon payment/bond face value.
The face value is the original amount which the bond was bought and that is $515 according to the question. While the coupon rate is 5.8%
mathematically, annual coupon payment = coupon rate * bond face value = 0.058 * 515 = $29.87
mathematically;
current yield = Annual coupon payment/bond price
current yield = 29.87/500
= 0.05974 or simply 5.974%
so the answer is c. 5.6%
Step-by-step explanation:
Answer:
A 6.0%
Step-by-step explanation:
coupon rate = Annual coupon payment/bond face value.
The face value is the original amount which the bond was bought and that is $515 according to the question. While the coupon rate is 5.8%
mathematically, annual coupon payment = coupon rate * bond face value = 0.058 * 515 = $29.87
mathematically;
current yield = Annual coupon payment/bond price
current yield = 29.87/500
= 0.05974 or simply 5.974%
5.974 rounded to 6.0 %
I WILL GIVE YOU BRAINLIEST!! what is the solution to the following equation? x^2+5x+7=0
Answer:
The answer is C
Step-by-step explanation:
By using the quadratic formula, you get
a=1
b=5
c=7
so, when you substitute, you get:
-5±√5²-4(2)(7)
____________
2(1)
The next step is solving the square root and multiplying
In what form is the following linear equation written?
3x – 2y =4
A. Rise-run
B. Standard
C. Point-slope
D. Slope-intercept
Answer: The answer is standard.
Step-by-step explanation: The equation for standard is ax+by+c.
Answer:
Standard Form
Step-by-step explanation:
Standard form:
ax+by=c
hope this helped and pls brainliest!
Which of the following is correct for the area of a square with side length of 3m
Answer:
The area of the square is 9 cm squared
Step-by-step explanation:
I know this because the formula for a square is s squared in which s represents sides so if i substitude the known value in i would get the answer of 9 cm squared.
Solution,
Length=3m
Area of square=(l)^2
=(3)^2
=3*3
=9m^2
hope it helps
Good luck on your assignment