4 and 2 are the porportions
Answer:
a = - 27
Step-by-step explanation:
- 
a - 6 = 12 ( add 6 to both sides )
- a = 18 ( multiply both sides by 3 to clear the fraction )
- 2a = 54 ( divide both sides by - 2 )
a = - 27
Answer:
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Step-by-step explanation:
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A = 1/2bh
40 = 1/2 x^2
x^2 = 80
x = 8.9
