Answer:
-12.5
Step-by-step explanation:
Hope it helps u
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8x + 7y = 39
4x - 14y = -68
(multiply each term in second equation by -2)
8x + 7y = 39
-8x + 28y = 136
(add both equations)
35y = 175
(divide both sides by 35)
y = 5
(substitute value of y in one of the equations)
8x + 7(5) = 39
8x + 35 = 39
8x = 4
x = 1/2
(x, y) = (1/2, 5)
Answer:
When dividing rational numbers, multiply by the "right" reciprocal. In this case, the "right" reciprocal means to take the reciprocal of the fraction on the right-hand side of the division operator.
First do
3x + -5x = -2x
Then do
-2x + 5x = 3x
Lastly do
3x+1
To find the rate of pay, first divide 82.50/7.5 to equal $11/hour.
Your rate of pay is $11 per hour.
Hope this helps!!
