Answer:
Step-by-step explanation:
Which expression is equivalent to 4. 8 + 2. 2w - 1. 4w + 2. 4 ?
a - 6 - 6a = 4
find the value of a
Answer:
-2
Step-by-step explanation:
a - 6 - 6a = 4
a-6a=10
-5a=10
a=10/-5
a=-2
Answer:
a = -2
Step-by-step explanation:
Add like terms:
a - 6 - 6a = 4
-5a - 6 = 4
Solve for a:
-5a = 10
a = -2
So, a = -2
Help!!
I need help with my math!!
Answer:
5
Step-by-step explanation:
12 - 7 = 5
Using Pythagoras Theorem
Hyp² = Adjacent² + Opp²
13² = d² = 12²
d² = 13² - 12²
d² = 169 - 144
d² = 25
d = √25
d = 5
The correct answer is 5, OPTION C IS CORRECT
Club members wrote a program together, with several people working on each of 4 parts. If the first part of the program required 1/3 of the total time, the second part needed 1/2 of the remaining time, the third part took 30 minutes, and the fourth part took 60 minutes, how many hours did the program take to write?
Answer:
Step-by-step explanation:
4 parts: 1/3 + 1/2 + 30min + 60min
1/3 of an hour is = 20 minutes
1/2 of an hour is 30 minutes
20 + 30 + 30 + 60(1h)= 140 minutes = 2 hours and 20 minutes
The total time did the program take to write is 2 hours and 20 minutes.
It is required to find total time.
What is arithmetic?The branch of mathematics dealing with the properties and manipulation of numbers. a science that deals with the addition, subtraction, multiplication, and division of numbers. Fractions, decimals, percentages, fractions, square root, exponents, and other arithmetic operations are used to achieve mathematical simplifications.
Given that:
several people working on each of 4 parts.
First part = 1/3 of the total time,
The second part = 1/2 of the remaining time,
The third part =30 minutes,
Fourth part= 60 minutes,
So, the total time in hour.
4 parts:
1/3 of an hour is = 20 minutes
1/2 of an hour is 30 minutes
Total time=1/3 + 1/2 + 30min + 60min
=20 + 30 + 30 + 60(1h)
= 140 minutes
= 2 hours and 20 minutes.
So, the total time did the program take to write is 2 hours and 20 minutes.
Learn more about arithmetic here:
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The distance from the Sun to Earth is about 1.5 × 10^11 meters. Suppose light travels at a speed of 3 × 10^8 meters per second. About how long does it take light from the Sun to reach Earth?
PLZ ANSWER ACCURATELY AND QUICKLY WILL MARK BRALINLIEST
Answer:
Si se tiene en cuenta que la velocidad de la luz en el vacío es de 299.792 km/s. La distancia existente entre el 'astro rey' y la Tierra es de unos 149,6 millones de kilómetros, una pequeña operación matemática indica que la luz del Sol tarda aproximadamente 8 minutos y 19 segundos en llegar a nuestro planeta.
Step-by-step explanation:
It takes light from the Sun about 500 seconds, or 8 minutes and 20 seconds, to reach Earth.
What is speed?Speed is the ratio of the given distance and time.
It shows how fast an object is moving at a given time.
The formula is Distance / Time.
We can find the distance or time when the required values are given using this formula.
We have,
To find the time it takes for light to travel from the Sun to Earth,
We can use the formula:
Time = distance/speed
where distance is the distance from the Sun to Earth and speed is the speed of light.
Plugging in the given values.
Time = (1.5 × 10^11 meters) / (3 × 10^8 meters per second)
Simplifying.
time = 500 seconds
Therefore,
It takes light from the Sun about 500 seconds, or 8 minutes and 20 seconds, to reach Earth.
Learn more about speed here:
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Draw a rhombus that is not a square. Label the lengths of its sides and its height so it represents a rhombus with an area of 20 square inches.
Answer:
/\
[tex]\sqrt{20}[/tex] / \[tex]\sqrt{20}[/tex]
/ \
\ /
[tex]\sqrt{20}[/tex] \ / [tex]\sqrt{20}[/tex]
\/
Step-by-step explanation:
i hope this is right it took me 30 min for the ascii
solve |x-3|=7 plz help asap I will mark brainliest
Answer:
x=10 or x=-4
Step-by-step explanation:
|x-3|=7
There are two solutions, one positive and one negative
x-3 = 7 and x-3 = -7
Add 3 to all sides
x-3+3 = 7+3 x-3+3 = -7+3
x = 10 x = -4
Well, if we are taking the absolute value, of |x - 3| = 7, then you have a total of two cases. 7 can be either positive or negitive.
Knowing this, we can write out our two cases as:
|x - 3| = 7, or
|x - 3| = -7
Using these two equations, we can solve the equations for our values of x:
First Case:
|x - 3| = 7
x - 3 = 7
x = 10
Second Case:
|x - 3| = -7
x - 3 = -7
x = -4
So, our two cases show us that x can equal -4, or 10.
here you guys go also first gets brainly.
In two or more complete sentences, explain how to use ordered pairs of points in f(x) = 3x - 5 and g(x) = x+5/3 to determine if f(x) and g(x) are inverses of each other
Answer:
for any point (x, y), that appears in one function, the point (y, x) must appear in the other function. for any point (x, y), that doesn't appear in one function, the point (y, x) must not appear in the other function.
so if you find any point that doesn't meet the above rules, you can prove that the functions are not inverses of each other.
to prove that they are inverses of each other, you need to check all points in the functions, and there is an infinity of them, so instead, you can write f(x) like this:
y = 3x - 5
solve for x:
y + 5 = 3x
x = (y + 5) / 3
swap x and y:
y = (x + 5) / 3
this is the same as g(x) which, therefore the functions are inverse of each other.
A manufacturer determines that the cost of making a computer component is $4.171717 Write the repeating decimal cost as a fraction and as a mixed number.
Can someone help me with questions 8 and 9 please?
Step-by-step explanation:
8) earning of 4.5 hours=$54
earning of 1 hour=$54/4.5
earning of 1 hour=$12
9)perimeter=36 feet
length is twice so
length=2x
width=x
perimeter = 2(length+width)
36=2(2x+x)
2x+x=36/2
3x=18
x=6
width=6 feet
length=2(6)
length=12 feet
Area of rectangle= length * width
area=12*6 sq.feet
area= 72 sq.feet
Determine whether each sequence is a geometric sequence. If yes, then state the common ratio.
1, -4, 16, -64, ...
Answer:
This is a geometric sequence with a common ratio of -4
Step-by-step explanation:
Take the second term and divide by the first term
-4/1 = -4
Take the third term and divide by the second term
16/-4 = -4
Take the fourth term and divide by the third
-64/16 = -4
This is a geometric sequence with a common ratio of -4
Graph each inequality on a number line.
d. You must be at least 38 inches tall to ride the roller coaster.
(number line photo attached)
Answer:
Create a black dot that is filled in, then an arrow going towards the right.
HELPPPPPPPPPP HELPPPPPP
Answer:
14c decrease Option D
Step-by-step explanation:
The temperature was 8c at 12 am and -7c at 7 pm to find the difference subtract to get 14c.
whats wrong im only in 7th grade
Step-by-step explanation:
If h(x) = x2-5x + 7 find:
⅓ h(-8)
Answer:
[tex]\displaystyle \frac{1}{3} h(-8) = 37[/tex]
Step-by-step explanation:
Hi there!
[tex]h(x) = x^2-5x + 7[/tex]
First, find h(-8) by replacing all of [tex]x[/tex] with -8:
[tex]h(-8) = (-8)^2-5(-8) + 7\\h(-8) = 64+40 + 7\\h(-8) = 111[/tex]
Now, find ⅓ h(-8) by multiplying the entire expression by ⅓:
[tex]\displaystyle \frac{1}{3} h(-8) = 111 * \frac{1}{3} \\\\\displaystyle \frac{1}{3} h(-8) = 37[/tex]
I hope this helps!
find three consecutive integers for which 3 times the sum of the first and third integers is -342? show step by step
Answer: The integers are -58, -57, -56.
Step-by-step explanation:
The difference between two consecutive integers is 1.
If you let the smallest of the three consecutive integers equal x, then the next greater one is x + 1, and the greatest of the three is x + 2.
Integers: x, x + 1, x + 2
The sum of the first and third is: x + x + 2
3 times the sum of the first and third is: 3(x + x + 2)
That product equals -342.
3(x + x + 2) = -342
3(2x + 2) = -342
Divide both sides by 3.
2x + 2 = -114
Subtract 2 from both sides.
2x = -116
Divide both sides by 2.
x = -58
x + 1 = -57
x + 2 = -56
The integers are -58, -57, -56.
Express each of these percentages as a fraction
158%
solution for class 7
Hope it helps :)
Rule for subtracting Integers: Keep, Change, Opposite.
Show the changes for subtracting integers:
1. 3 - 7
2. -4 -2
3. -4 - (-6)
4. x - 3x
5. 3 - 4x
6. -3 - (-2x)
Answer:
-4 -6 2 -2x 3-4x 2x-3
Step-by-step explanation:
3 - 7= -4 (7 is larger so we get - sign)
-4-2=-6(we add "-" terms but they have the - sign)
-4-(-6)=-4+6=2(- multiplied by - =+ meaning - - = +)
x-3x=-2x(3x is larger)
3-4x=3-4x(Unlike Terms)
-3 - (-2x)=-3+2x=2x-3(Unlike terms, so we only simplify the signs)
geometry homework, help asap please!
Answer:
I think DFG= 82 (BEING ALTERNATIVE ANGLE)
If f(x) = -2x- 1 and g(x) = -x what is the value of f [g(2)]?
PLEASE ANSWER ACCURATELY
Answer:
[tex]\displaystyle f[g(2)] = 3[/tex]
Step-by-step explanation:
We are given the two functions:
[tex]\displaystyle f(x) = -2x - 1\text{ and } g(x) = -x[/tex]
And we want to find the value of:
[tex]\displaystyle f[g(2)][/tex]
First, evaluate g(2):
[tex]\displaystyle \begin{aligned} g(2) &= -(2) \\ &= -2\end{aligned}[/tex]
Substitute:
[tex]\displaystyle f[g(2)] = f(-2)[/tex]
Evaluate f(-2):
[tex]\displaystyle \begin{aligned} f(-2) &= -2(-2) - 1 \\ &= 4 - 1 \\ &= 3\end{aligned}[/tex]
Therefore:
[tex]\displaystyle f[g(2)] = 3[/tex]
helppppppppppppppppppppppppppp
Answer:
I think the answer is a, 15 ft by 10ft
Answer:
15 ft by 10 ft
Step-by-step explanation:
3/4×20=60/4=30/2=15
1/2×20=20/2=10
please give branliest...pleaseWhich list shows the order of the numbers from greatest to least? List 1: 2.3, 2.03, 2.5, 0.25 List 2: 0.25, 2.5, 2.03, 2.3 List 3: 2.03, 2.3, 2.5, 0.25 List 4: 2.5, 2.3, 2.03, 0.25
Answer:
4
Step-by-step explanation:
2.5, 2.3, 2.03, .25
Please help me I need it ASAP! Thank you!
7 divided by 900 please help this question is annoying
HELP ASAP PLZZZZZZZ If the side lengths of a cube are 15 feet, what is the correct way to write the expression to represent the volume of the cube in exponential form?
15 ⋅ 15 ⋅ 15
15 ⋅ 3
315
153
Answer:
D
Step-by-step explanation:
It's a guess because none of them look like the exponential form. However, I think D is probably the answer you want.
On this site it should be written as C = 15^3.
Valeria bought a 9-foot length of ribbon from which she wants to cut 3-foot pieces. How many pieces can she cut? What will be the length of the leftover piece of ribbon?
help plz
Answer:
She can cut 3 pieces of ribbon.
None will be left over.
What is the volume of the following rectangular prism?
I’m doing this on khan academy and I keep failing the test. Now I’m scared of getting questions wrong
Answer:
8 1/8 units³
Step-by-step explanation:
V = lwh
Since the area is already given to you, just multiply that by the other number.
[tex]V=(16\frac{1}{4})(\frac{1}{2})\\\\V=\frac{65}{8}=8\frac{1}{8}[/tex]
Currently, Jacob’s mother is three more than nine times as old as Jacob. In eleven years, his mother will be five more than three times his age. Write a system of linear equations that models this situation. Let j represent Jacob's age, and let m represent his mother's age.
Write an equation that relates Jacob and his mother's current ages. Solve the system of equations.
What are their ages?
Answer:
Jacob is 4 years old and his mother is 40 years old.
Step-by-step explanation:
Part 1: The linear equations are and
Part 2: Solving the equations, we have, and
Part 3: Jacob is 4 years old and his mother is 40 years old.
Explanation:
Part 1: Let j represent Jacob's age, and let m represent his mother's age.
It is given that, "Jacob's mother is three more than nine times as old as Jacob". Writing it as linear equation, we have,
It is also given that, "In eleven years, his mother will be five more than three times his age". Writing it as linear equation, we have,
Simplifying this, we get,
Thus, the linear equation is
The linear equations are and
Part 2: Solving the linear equation, we get,
Substituting in
Simplifying, we get,
Hence,
Substituting in
Solving the equations, we have, and
Part 3: Since, j represents jacob and m represents the jacob's mother
Thus, Jacob is 4 years old and his mother is 40 years old.
PLEASE HELP ME ITS EITHER PASS OR FAIL I RLLY NEED HELP ITS MY LAST ONE
Answer:
7
Step-by-step explanation:
You would do 42/6 which is 7 (this is the answer for part b)
Plz help, will mark brainliest!
Answer:
-7
Step-by-step explanation:
The relative minimum is the smallest y value
The relative minimum is -7