3 years ago

Write an equation that is the sum of the first

Mathematics

1 answer:

lana66690 [7]3 years ago

7 0

Idk tbh so I’m sorry guys lmso

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5x +7 y=-17<br> 4x – 3y = -5<br> Substitute.

Bond [772]

Answer:

(x,y) = (-2, -1)

Step-by-step explanation:

We start off by substituting the value of "x".

5x+7y=-17

x=- $\frac{5}{4} + \frac{3}{4}y$

We then solve 5 $5(-\frac{5}{4}+\frac{3}{4}y ) +7y= -17$

y=-1 *Substitute the value of "y"

x= - $-\frac{5}{4}+\frac{3}{4}x(-1)$

x=-2

$\left \{ {{-17=-17} \atop {-5=-5}} \right.$ This works.

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3 years ago

Round 41.805 to the nearest whole number

aleksandr82 [10.1K]

The answer to your question is 42. The rule is 5 or more go up 1 . If the number is 4 les stay where it is. hope this help.

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Rearrange the formula to make x the subject:<br> A = 1/2xy

Maslowich

Answer:

x = $\frac{2A}{y}$

Step-by-step explanation:

Given

A = $\frac{1}{2}$ xy

Multiply both sides by 2 to clear the fraction

2A = xy ( divide both sides by y )

$\frac{2A}{y}$ = x

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3 years ago

can someone help me?? What is the solution to the linear equation? d – 10 – 2d + 7 = 8 + d – 10 – 3d d = –5 d = –1 d = 1 d = 5

erik [133]

Answer:

Step-by-step explanation:

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Kelsey is 5 feet tall and stands 35 feet away from the building

ss7ja [257]

Answer: 21.9ft

Step-by-step explanation: please see attachment for explanation. Thanks.!

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