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Morgarella [4.7K]
3 years ago
9

A vet borrows $12,000 for 4 years. The total interest paid was $960. What was the interest rate on the loan?

Mathematics
1 answer:
Alchen [17]3 years ago
3 0

Answer:

2% per year.

Step-by-step explanation:

Solving our equation

r = 960 / ( 12000 × 4 ) = 0.02

r = 0.02

converting r decimal to a percentage

R = 0.02 * 100 = 2%/year

The interest rate required to

accumulate simple interest of $ 960.00

from a principal of $ 12,000.00

over 4 years is 2% per year.

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5 0
4 years ago
A hippopotamus's typical growth rate is typically 50.5% per year when considering it's weight in pounds from birth to maturity.
VARVARA [1.3K]

Answer:

9.3 years

Step-by-step explanation:

we know that

The equation of a exponential growth is equal to

y=a(1+r)^x

where

y is the weight in pounds

x is the number of years

a is the initial value or y-intercept

we have

a=70\ lb\\r=50.5\%=50.5\100=0.505

substitute

y=70(1+0.505)^x

y=70(1.505)^x

For y=3,100 lb

substitute in the equation

3,100=70(1.505)^x

solve for x

\frac{310}{7} =(1.505)^x

apply log both sides

log(\frac{310}{7}) =log[(1.505)^x]

log(\frac{310}{7}) =(x)log(1.505)

x=log(\frac{310}{7})/log(1.505)=9.3\ years

6 0
3 years ago
All real number that are less than or equal to -3 and greater thank or equal to -8
Mariulka [41]

Answer:

-3, -4, -5, -6, -7, -8

Step-by-step explanation:

Im not sure if that is what you are looking for or if you want x ≤ -3 and x ≥ -8

6 0
4 years ago
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