Answer:
40 = d+q
7.15=0.10d+0.25q
there are 19 dimes and 21 quarters.
Answer:
20
Step-by-step explanation:
3 (b + a) = c
3 (4 + 5) = 7
12 + 15 = 7
27 = 7
27 - 7
20
by pythagorean formula, the last side is √(61)
by cos rule
cos A

A = 39.81
Answer:
A, B, C
Step-by-step explanation:
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Answer:
c ?
Step-by-step explanation: