ANSWER: a=12 b=15
Explanation: (look at work below)
4a + 1b = 63 (eq1)
5a + 3b = 105 (eq2)
-12a + -3b = -189 (subt. eq1 from eq2)
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-7a = -84
a = 12
4(12) + 1b = 63 (plug in the a value)
48 + 1b = 63
b = 15
Answer:
G. 4/7
Step-by-step explanation:
They both equal to -4 using that value
Answer:
Step-by-step explanation:
If C=2πr
r=C/2π (change of sbject)