The answer would be y=-4 and x=4, so pick which ever number/letter has this answer.
Answer:
314 square centimeters
Step-by-step explanation:
A) .10 d + .25 q = 7.75
B) d + q = 40
Multiplying B) by -.10
B) -.10d -.10q = -4.0
Then adding this to A)
A) .10 d + .25 q = 7.75
.15q = 3.75
Quarters = 25
Therefore, dimes = 15
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Double-Check
A) .10 d + .25 q = 7.75
A) .10 * 15 d + .25 * 25 = 7.75
A) 1.50 + 6.25 = 7.75
Correct!!
Can be achieved by dividing.
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8 ÷ 9 = 0.8888
Therefore the answer is B
