Answer:
21
Step-by-step explanation:
Answer: LCM(3,21) = 21
Step-by-step explanation: Least common multiple or lowest common denominator can be calculated in two ways, with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.
Can someone please help me ???
Answer:
C
Step-by-step explanation:
how do you know if an equation has infinite solutions?
if the equation ends with a true statement, like 3=3, then you know it has sinfinite solutions. in this situation x=x
C:
3(2x+1)=6x+3
(multiply 3 by (2x+1))
6x+3=6x+3
(subtract 6x-3 from both sides)
0=0
I AM BAD AT MATH SO I NEED HELP
Answer:
2
Step-by-step explanation:
3-5/-2-(-1)
-2/-1 =
2
Answer:
2
Step-by-step explanation:
The slope is rise over run,
the equation for finding it is,
[tex]\frac{y_{2} - y_{1} }{x_{2} - x_{1} }[/tex]
given the points
-2, 3
-1, 5
[tex]x_{1}[/tex] = -2
[tex]x_{2}[/tex] = -1
[tex]y_{1}[/tex] = 3
[tex]y_{2}[/tex] = 5
substitute in
[tex]\frac{y_{2} - y_{1} }{x_{2} - x_{1} }[/tex]
=[tex]\frac{(5) - (3)}{ (-1) - (-2)}[/tex]
simplify,
[tex]\frac{2}{1}[/tex]
= 2
need help asap, will mark brainliest. thank u
Graph 4x−y=8. Use the line tool and select two points on the line.
Point 1: (0, -8)
Point 2: (2, 0)
What is the following numbers in descending order
Answer:
it goes B C A
Step-by-step explanation:
Order these 4 fractions from least to greatest. * 10 points Captionless Image Option 1 Option 2 Option 3
Answer:
Me neither. Or you didn't post them.
Answer:
There literally isn't an image
Step-by-step explanation:
Quinn peels 4.5 pounds of apples in 15 minutes what is Quinn’s unit rate for peeling apples in pounds per hour
Answer:
18 pounds per hour
Step-by-step explanation:
Divide to find how many 15 minute segments there are in 1 hour. Note that 1 hour = 60 minutes.
60 / 15 = 4
Multiply 4 to the number of pounds she peels every 15 minutes that go by.
4.5 * 4 = 18 pounds
Best of Luck!
Answer:
18 pounds
Step-by-step explanation:
I just don't wanna do the math rn bc i have an upset stomach but its easy.
Tori bought 24 candy bars for 69 cents each. She used partial products to find the total cost in cents.
Which are not possible partial products for
24
×
69
? Select all that apply.
A.
24
B.
36
C.
180
D.
240
E.
1,656
Answer:
ABC
Step-by-step explanation:
OR ABD
Find the equation of the line that contains the given point and is parallel to the given line. Write the equation in slope-intercept form, if possible. (-6,8); 4x-3y=5
Answer:
y = 4x/3 + 16
Step-by-step explanation:
Since the point new line is parallel to the line 4x - 3y = 5, so it must have the same slope. We now write this equation in slope-intercept form
4x - 3y = 5
-3y = -4x + 5
y = 4x/3 - 5/3
Its slope is the coefficient of x. So, its slope is 4/3 which will be the slope of the new parallel line which passes through the point (-6, 8).
To find the equation of this line, we use
(y - y₀)/(x - x₀) = m where x₀, y₀ are the points which the line passes through and m = slope of line. Given that ( x₀, y₀) = (-6, 8) and m = 4/3, we substitute these values into the equation. We have
(y - y₀)/(x - x₀) = m
(y - 8)/(x - (-6)) = 4/3
(y - 8)/(x + 6) = 4/3
cross-multiplying, we have
3(y - 8) = 4(x + 6)
Expanding the brackets, we have
3y - 24 = 4x + 24
collecting like terms, we have
3y = 4x + 24 + 24
3y = 4x + 48
In slope-intercept form, it is
y = 4x/3 + 48/3
y = 4x/3 + 16
please help me please
The value of x in terms of b is x = -3/b
The value of x when b is 3 is x = -1
===========================================
Work Shown:
Let's isolate x
-2(bx - 5) = 16
bx - 5 = 16/(-2) ... dividing both sides by -2
bx - 5 = -8
bx = -8+5 ... adding 5 to both sides
bx = -3
x = -3/b ... dividing both sides by b
That wraps up the first part.
-----------
To answer the second part, we plug in b = 3 to get
x = -3/b
x = -3/3
x = -1
What is the answer for my geometry problem?
Answer:
x=42.5
Step-by-step explanation:
all the sides have to add up to 180
4x+10=180
-10 -10
------------------
4/4x=170/4
x=42.5
I hope this helps
Pls help I need the right for a-f (really important to look at both pics)
Answer:
the answer is D
Step-by-step explanation:
HELPPP MEEE PLEASEEEE
Answer:
np=b
a
......................................
Pls help me, I will mark as Brainliest! Thank u! (7th grade math work)
Answer:
Q 1- 15, just multiply 5 x 2 = 15
Q 2- 36, just multiply 8 x 12 = 36
Q 3- y= -2x
Q 4- 1200
Q 5- 20
19 hundred thousandths in scientific
notation.
Althea earns 5.87 per hour how much money will she have if she work 5 hours
Answer:
29.35
Step-by-step explanation:
5.87 times 5
3(x - 4) = -21
Helpppppppppppppp
Answer: -3
Step-by-step explanation:
Sheila has 11 1 2 pounds of potato salad. She wants to divide the potato salad into containers, each of which holds 1 1 4 pounds. How many containers does she need?
Answer:
9 containers
Step-by-step explanation:
Given
Total pounds of potato salad = 11 1/2 pounds
If one container holds 1 1/4 pounds:
The number of container that 11 1/2 pounds can hold is expressed as:
Number of container = Total pounds/volume of one container
Number of container = 11 1/2 ÷ 1 1/4
Convert to improper fraction
Number of container = 23/2 ÷ 5/4
Number of container = 23/2 × 4/5
Number of container = 92/10
Number of container = 9.2
Therefore she will need 9 containers
Salam walks along a path surrounding a circular pond. The paths radius is 150 meters. Salam walks 75 meters per minute. About how long does it take Salam to walk around the path once.
Answer:
The time it takes Salam to walk around the path once is 12 minutes 34 seconds
Step-by-step explanation:
Given;
radius of the circular pond, r = 150 m
speed of Salam, v = 75 m/min
A single distance round the circular path is given by;
d = 2πr
d = 2π(150)
d = 942.6 m
Time it takes Salam to walk around the path once, is given by;
time = distance / speed
time = 942.6 / 75
time = 12.568 minutes
time = 12 minutes 34 seconds
Therefore, the time it takes Salam to walk around the path once is 12 minutes 34 seconds
Calculate the slope of the line given the two points ( -3, 1 ) and ( 4, 6 )
Answer:
I believe it is 5/7
Step-by-step explanation:
y2-y1 over x2-x1 which is 6-1 over 4- (-3) ----> 6-1=5, 4+3=7 -----> 5/7
Answer:
The slope should be 5/7.
Step-by-step explanation:
You take the 6 and subtract from 1
And you take the 4 and subtract from -3
6-1/4- -3= 6-1/4+3=5/7
A group of students made trees out of paper for a scene in a school play. The trees are shaped like square pyramids. 2 ft How much paper will it take to make each tree, including the bottom?
Answer:
20 square feet^2
Step-by-step explanation:
The computation is shown below:
As we know that
The area of a triangle is
= 1 ÷ 2 × base × height
Now for the one triangle is
= 2 × 4 ÷ 2
= 4
No multiplied it by four sides
So, it would be
= 4 × 4
= 16
And, the base of the sqaure is
= 2 × 2
= 4
So, the overall shape would be
= 16 + 4
= 20 square feet^2
Answer:
24,500
Step-by-step explanation:
How do i solve similar figures equations
Answer:
If an angle of one triangle is congruent to the corresponding angle of another triangle and the lengths of the sides including these angles are in proportion, the triangles are similar.
Step-by-step explanation:
Which of the following is the abbreviation for a milligram?
mig
оооо
Mg
mg
Answer:
mg
Step-by-step explanation:
because Mg is a symbol for Magnesium so milligram is mg
French fries= $2
hotdog= $3
shake= $2
coke= $1
pizza slice= $3
ice cream=$3
taco= $2
milk= $1
Answer:
9. $17
10. $34
11.2+2+3+3=10
12. nachos=$3
Sandwich=$2
chips = $1.50
coffee= $4
Slushy=$3
Bottled water = $1
2+1.50=3.50
4+3+2=9
1+3+3=7
Answer:
17
Step-by-step explanation:
1+2+3+3+1+2+3+2=
3+3+3+1+2+3+2=
3+3+3+3+3+2=
6+3+3+3+2=
6+6+3+2=
6+6+5=
12+5=
17
The johnsons annversary party will cost 48 dollars if 12 people come to the party. It will cost 88 dollars if 22 people come to the party. What is the cost per gusset.
Answer:
Cost per gusset = 4
Step-by-step explanation:
Given:
Cost for 12 people party = $48
Cost for 22 people party = $88
Find:
Cost per gusset
Computation:
Cost per gusset = 48 / 12
Cost per gusset = 4
Cost per gusset = 88 / 22
Cost per gusset = 4
What is the range of the absolute value function shown in the graph?
Heather's mom says that they would save more than $100 if they buy 4 tickets for their family on opening weekend. Do you agree or disagree with Heather's mom? Use numbers and words to support your answer. If her statement is incorrect, explain the correct way to solve it.
Answer:
The first part of the question is missing, so I looked for similar questions:
Heather and her family are going to the grand opening of an amusement park. There is a special price on tickets this weekend. Tickets cost 56$ each. This is 70% of a regular price ticket.
Part A- What is the cost of a regular price ticket?
Part B- Heather's mom says they would save more than 100$ this opening weekend. Do you agree or disagree with Heather's mom?
A) the price of a regular ticket is $56/70% = $80 per ticket
B) Heather's family is saving ($80 - $56) x 4 tickets = $24 x 4 = $96
Her family is almost saving $100, but not more than $100.
The Township Board of Meridian Township wants to know how much public support there is for raising property taxes to fix and maintain the roads in the township. They randomly surveyed Township residents and calculated a 90% confidence interval for the actual proportion of Meridian Township residents who are in favor of the tax increase to be (0.58, 0.63).
Complete Question
The Township Board of Meridian Township wants to know how much public support there is for raising property taxes to fix and maintain the roads in the township. They randomly surveyed Township residents and calculated a 90% confidence interval for the actual proportion of Meridian Township residents who are in favor of the tax increase to be (0.58, 0.63).
1. What is the sample proportion? Give the exact answer as a decimal.
2. Which of the following statements must be true?
A. If the sample size had instead been 960 residents, then the 90% confidence interval would be half as wide as the one stated above.
B. A 99% confidence interval calculated using the same survey data will include more plausible values for the population proportion.
C. If a different sample of 480 residents were to be selected, then there is a 90% chance that the new sample proportion will be between 0.57 and 0.62
3. What is the margin of error for this confidence interval? Give the exact answer as a decimal.
4. What is the standard error for this confidence interval? Round your answer to 4 decimal places.
5. What is the 95% confidence interval using the same survey data?
Answer:
1
[tex]\^ p = 0.605[/tex]
2
Correct option is B
3
[tex]E =0.025[/tex]
4
[tex]SE = 0.0152[/tex]
5
The 95% confidence interval is [tex]0.575< p < 0.635 [/tex]
Step-by-step explanation:
From the question we are told that the
The 90% confidence interval is (0.58, 0.63)
From the question we are told the confidence level is 90% , hence the level of significance is
[tex]\alpha = (100 - 90 ) \%[/tex]
=> [tex]\alpha = 0.10[/tex]
Generally from the normal distribution table the critical value of [tex]\frac{\alpha }{2}[/tex] is
[tex]Z_{\frac{\alpha }{2} } = 1.645[/tex]
Generally the sample proportion is mathematically represented as
[tex]\^ p = \frac{0.63 + 0.58}{2}[/tex]
=> [tex]\^ p = 0.605[/tex]
Generally the width of a confidence varies directly with the margin of error and this margin of error varies directly with the critical value which increases as the level of confidence increases
So if the confidence level is increased from 90 to 99 the critical value will increase which will increase the margin of error , which will increase the width of the confidence interval (and an increase in the width of confidence interval means that more plausible values for the population proportion will be included )
Therefore the correct option for question 2 is B
Generally the margin of error is mathematically represented as
[tex]E =\frac{0.63 - 0.58 }{2}[/tex]
=> [tex]E =0.025[/tex]
Generally the margin of error can also be mathematically represented as
[tex]E = Z_{\frac{\alpha }{2} } * SE[/tex]
=> [tex]0.025 = 1.645 * SE[/tex]
=> [tex]SE = 0.0152[/tex]
From the question we are told the confidence level is 95% , hence the level of significance is
[tex]\alpha = (100 - 95 ) \%[/tex]
=> [tex]\alpha = 0.05[/tex]
Generally from the normal distribution table the critical value of [tex]\frac{\alpha }{2}[/tex] is
[tex]Z_{\frac{\alpha }{2} } = 1.96[/tex]
Generally the margin of error can also be mathematically represented as
[tex]E = 1.96 * 0.0152[/tex]
=> [tex]E = 0.02979[/tex]
Generally 95% confidence interval is mathematically represented as
[tex]\^ p -E < p < \^ p +E[/tex]
=> [tex]0.605 -0.02979 < p < 0.605 +0.02979[/tex]
=> [tex]0.575< p < 0.635 [/tex]
What will 20x-4) simplify to?
Answer:
5x + 1
Step-by-step explanation:
Answer: the answer is = 20x − 4
ASAP ASAP ASAP
please help me
Answer: Option B - 3 1/2
Step-by-step explanation:
Using the graph they give you on your problem, you can see that they split the fourths into eighths for you. To find how much sauce Alfredo has, you can count the little squares at the bottom up to 7. Then, you check where that is relative to the top squares. When you finish counting, you will see you have passed 3 of the 1/4 size boxes and you are halfway through the last 1/4 size box. Therefore, Alfredo can make 3 and 1/2 servings.
