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Julli [10]
3 years ago
5

Given the equation y=-3x+2.5: When x is 1, what value of y makes the equation true?

Mathematics
2 answers:
erica [24]3 years ago
7 0

Answer:

-0.5

Step-by-step explanation:

-3+2.5 is -0.5

Alex777 [14]3 years ago
4 0

Answer:

Step-by-step explanation:Its D I did the math :D

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Read 2 more answers
The perimeter of a rectangular pool is 414 meters. The length is 7 meters more than 4 times the width find the length and width
Marina86 [1]

Answer:

The length of rectangular pool is 167 meters and the width is 40 meters

Step-by-step explanation:

Let

x ----> the length of rectangular pool

y ----> the width of rectangular pool

we know that

The perimeter of rectangle (rectangular pool) is equal to

P=2(x+y)

we have

P=414\ m

so

414=2(x+y)

simplify

207=x+y ----> equation A

x=4y+7 ----> equation B

solve the system by substitution

substitute equation B in equation A

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solve for y

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y=40\ m

Find the value of x

x=4y+7

x=4(40)+7=167\ m

therefore

The length of rectangular pool is 167 meters and the width is 40 meters

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3 years ago
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