Answer:
x = -3
y = 8
Step-by-step explanation:
x + 2y = 13 ------------(I)
x = 13 - 2y -----------(II)
-2x - 3y = -18 ----------(III)
Substitute x = 13 - 2y in equation (III)
-2*(13 - 2y) - 3y = -18
-2*13 - 2y *(-2) -3y = -18
-26 + 4y - 3y = -18 {Combine like terms}
-26 + y = -18 {Add 26 to both sides}
y = -18 + 26
y = 8
Substitute y = 8 in equation (II)
x = 13 - 2*8
= 13 - 16
x = -3
x = -3
y = 8
The zeros of the given functions are shown on the attached picture.
Answer:
Option C, x = 35
Step-by-step explanation:
<u>If two angels are supplementary, they add up to 180</u>
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<u>Step 1: Make an equation</u>
<em>3x + 15 + 60 = 180</em>
<em />
<u>Step 2: Solve for x</u>
3x + 15 + 60 = 180
3x + 75 - 75 = 180 - 75
3x / 3 = 105 / 3
<em>x = 35</em>
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Answer: Option C, x = 35
6, 2/3 cup servings are in 4 cups.