2 years ago

Write an expression that represents the perimeter of the figure below. Write your

Mathematics

1 answer:

sergij07 [2.7K]2 years ago

5 0

Answer:

start by answering the question

Step-by-step explanation:

the answer is in the top right

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I’m confused on this answer anyone know it?

slamgirl [31]

Answer:

$y=\frac{26}{7},\:x=-\frac{15}{7}$

Step-by-step explanation:

$\begin{bmatrix}4x+5y=10\\ -2x+y=8\end{bmatrix}\\\\\begin{bmatrix}-2\cdot \frac{10-5y}{4}+y=8\end{bmatrix}\\\\$

$-5+\frac{7y}{2}=8\\\\\mathrm{Multiply\:both\:sides\:by\:}2\\-5\cdot \:2+\frac{7y}{2}\cdot \:2=8\cdot \:2\\-10+7y=16\\y=\frac{26}{7}\\$

$\mathrm{For\:}x=\frac{10-5y}{4}\\\mathrm{Subsititute\:}y=\frac{26}{7}\\x=\frac{10-5\cdot \frac{26}{7}}{4}\\\\$

$x=-\frac{15}{7}\\$

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2 years ago

0.3434343434 What is this as a fraction

nlexa [21]

Answer:

34/99

Step-by-step explanation:

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2 years ago

Augie burns 225 calories per 30 minutes of bicycling How many minutes would Augie have to bike to burn 150 calories

lianna [129]

Well first 225/30 is 7.5 so you times 7.5 by any number till you get 150, which the answer is 20 minutes to burn 150 calories

work:
223/30 = 7.5
7.5 * 20 = 150

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2 years ago

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If a woman get 7000 dollars for every 3 hour how much will she make for 81 hours

vovikov84 [41]

Answer:

567000 dollars

Step-by-step explanation:

Straightforward if 7000 for 3 hours then 3*27=81 and 7000*81=567000

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2 years ago

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I need help to find the slope of the line the answers are A: 4 B:-1/4 C:-4 D:1/4

dolphi86 [110]

Answer:

-1/4

Step-by-step explanation:

Take two points on the line

(-4,-1) and (0,-2)

Using the slope formula

m = (y2-y1)/(x2-x1)

= ( -2 - -1)/( 0 - -4)

= (-2+1)/ ( 0+4)

-1/4

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2 years ago