Isolate the variable by dividing each side by factors that don’t contain variable.
Answer: x = -2
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R - 10 = 18 - r
2r = 28
r = 14
Life expectancy of dollar bill = d
life expectancy of coin = c
d = 1/20 c
substitute value in for c (30)
d = 1/20 * 30
d = 30/20
d = 1.5
life expectancy of a dollar bill = 1.5 years
Step-by-step explanation:
here is the answer to your question
150/2000 cause 2000 would be your bottom number and 150 is your is your top number