Answer :
In the 10th-week, account C contains more money than account D.
Ratio and proportion
A ratio is an ordered pair of numbers a and b, written as a/b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other.
Given
Bank account C starts with 10 and doubles each week.
Bank account D starts with 1,000 and grows by $500 each week.
When will account C contain more money than account D?
Bank account C starts with 10 and doubles each week.
The equation will be
[tex]\rm y = 10*2^n[/tex]
for n = 10, y will be 10240.
Bank account D starts with 1,000 and grows by $500 each week.
The equation will be
y = 1000 + 500n
For n = 10, y will be 6000.
Thus, in the 10th-week account C contains more money than account D.
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