<span>Use a proportion:
x/(5 1/2) = 50/4
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x = (11/2)(50/4)
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x = 550/8
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x = $68.75</span>
51 = x + (x + 31)
Solve that in order to find the answer to your problem.
Answer:
1
Step-by-step explanation:
trig identity
sin²x+cos²x=1
9: 1/2e=1/4
Multiply the reciprocal of 1/2 (2/1) to 1/4
The answer is e= 1/2 (simplified)
10:2/5g=3/5
same as last question multiply the reciprocal of 2/5 (5/2) to 3/5
The answer is 3/2=e
Hope this helps, and brainliest please :D <span />
