The sum of two numbers is 20. One number is three times as large as the second

Mathematics

1 answer:

LUCKY_DIMON [66]3 years ago

6 0

Answer:

The two numbers are 5 and 15 :D. The statement I would use is: Let x be the smaller number, and let 3x be the larger.

Step-by-step explanation:

If I helped, please mark brainliest !

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Maureen earned some money doing odd jobs last summer and put it in a savings account that earns 9% interest compounded quarterly

ivolga24 [154]

Answer:

Maureen earned $123.19 doing odd jobs

Step-by-step explanation:

The compound interest formula is given by:

$A(t) = P(1 + \frac{r}{n})^{nt}$

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per unit year and t is the time in years for which the money is invested or borrowed.

In this question:

Compounded quarterly means that $n = 4$