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Iteru [2.4K]
3 years ago
10

Solve each system by elimination. 1) –10x – 15y = 30 -9x - 5y=-24

Mathematics
1 answer:
Reika [66]3 years ago
5 0

Answer:

(6,-6)

Step-by-step explanation:

1. -10x-15y=30

-10x-15y+15y=30+15y

-10x/-10=30+15y/-10

x=-3 -3/2

plug in the other equation and solve for y

-9x-5y=-24

-9(-3-3/2)-5y=-24

y=-6

plug -6 in for y in one of the original equations

-9x-5y=-24

-9x-5(-6)=-24

solve for x

x=6

<em>wonderful</em>

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Read 2 more answers
Identify a horizontal or vertical stretch or compression of the function f(x)=\sqrt(x) by observing the equation of the function
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By applying the concept of transformation, the <em>transformed</em> function g(x) = √[(3/2) · x] is the consequence of applying a <em>stretch</em> factor of 3/2 on the <em>parent</em> function f(x) = √x.

<h3>How to compare two functions by concepts of transformation</h3>

In this question we have a <em>parent</em> function g(x) = √[(3/2) · x] and a <em>transformed</em> function f(x) = √x. Transformations are operations in which parent functions are modified in their relationships between inputs and outputs.

In this case, the difference between f(x) and g(x) occurred because of the application of a operation known as <em>vertical</em> stretch, defined below:

f(x) = g(k · x), k > 0     (1)

Where k is the <em>stretch</em> factor. There is a compression for 0 ≤ k < 1.

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To learn more on transformations: brainly.com/question/11709244

#SPJ1

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