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Angelina_Jolie [31]

3 years ago

6

stanley drove his car on a business trip. When he left, the mileage was 840 miles, and when he returned, the mileage was 1,200 m

iles. The car used 12 gallons of gasoline for this trip

1 answer:

Mice21 [21]3 years ago

6 0

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The length of a rectangle is twice its width. The perimeter of the rectangle is 24 inches. Write a system of equations in 2 vari

kenny6666 [7]

Let us assume the width of the rectangle = w
Let us assume the length of the rectangle = l
Then
l = 2w
Also
Perimeter of the rectangle = 2 (l + w)
24 = 2 (2w + w)
24 = 2 (3w)
24 = 6w
w = 24/6
= 4 inches
Now
The length of the rectangle = 2w
= 2 * 4 inches
= 8 inches
So the length of the rectangle is 8 inches and the width is 4 inches.

4 0

3 years ago

-3(x + 2)2 + 4 = -8<br> what’s the answer

podryga [215]

X=0

-3(0+2)2+4 distribute -3 to the parentheses-PEMDAS
(0-6)2+4 multiply 2 by the parentheses
(0-12)+4 solve the equation
= -8

8 0

3 years ago

Read 2 more answers

How to solve : <br><br> 〖1/(3^(x-2).9^(3x) )=1/(〖√(〖27〗^(2x+3) ))〗^(-1) )〗^

grin007 [14]

$\dfrac{1}{3^{x-2}\cdot9^{3x}}=\dfrac{1}{(\sqrt{27^{2x+3}})^{-1}}\\
\dfrac{1}{3^{x-2}\cdot(3^2)^{3x}}=\dfrac{1}{(((3^3)^{2x+3})^{\frac{1}{2}})^{-1}}\\
\dfrac{1}{3^{x-2}\cdot3^{6x}}=\dfrac{1}{((3^{6x+9})^{\frac{1}{2}})^{-1}}\\
\dfrac{1}{3^{x-2+6x}}=\dfrac{1}{(3^{3x+\frac{9}{2}})^{-1}}\\
\dfrac{1}{3^{7x-2}}=\dfrac{1}{3^{-3x-\frac{9}{2}}}\\
3^{7x-2}=3^{-3x-\frac{9}{2}}\\
7x-2=-3x-\dfrac{9}{2}\\
14x-4=-6x-9\\
20x=-5\\
x=-4
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6 0

3 years ago

What is 2 divided by 1/6?<br> 1/12<br> 2<br> 6<br> 12<br> ASAP pls

Reika [66]

Answer:

$\huge{ \boxed{ \bold{ \tt{12}}}}$

Step-by-step explanation:

$\sf{2 \div \frac{1}{6}}$

We know that division by fraction is the inverse of multiplication. If any number or fraction is divided by a fraction , we multiply the dividend by the reciprocal of the divisor. Reciprocal of any number or fraction can be obtained by interchanging the position of numerator and denominator.

$: \longrightarrow{ \: 2 \times \frac{6}{1} }$

Multiply

$: \longrightarrow{ \boxed{ \bold{ \text{12}}}}$

And we're done!

Hope I helped!

Best regards! :D

~ $\text{TheAnimeGirl}$

5 0

3 years ago

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Choose all of the equation for which x=2 is a solution.

miss Akunina [59]

Answer:

8=4x

Step-by-step explanation:

4 x 2 = 8 so that means x=2

8 0

3 years ago