need help

[urban star]

Need help with b and c

[ashen eagle]

1. Wait patiently for a helper to come along.
2. Once someone helps you, say thank you and close the thread with: ```diff
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[bold crown]

b) Av = (1/2)(a1+a2)
multiply both sides by 2
2Av = a1+a2
subtract a2 from both sides
2Av-a2 = a1
a1 = 2Av-a2
c) Av = 11/12
a2 = 7/6
a1 = 2×(11/12)-(7/6)
= (22/12)-(7/6)
= (11/6)-(7/6)
= 4/6
= 2/3

[urban star]

Ty

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