Rita promises to give her 12-year-old daughter $12,000 when she turns 18. how much does she need to put in the bank now if the interest rate is 12 percent per year?

$6,079.58 does she need to put in the bank now

Step-by-step explanation:

Using the formula:

where

A is the amount

P is the principal

r is the rate of interest(in decimal) and

t is the time in years.

As per the statement:

Rita promises to give her 12-year-old daughter $12,000 when she turns 18.

⇒

We have to find the sum of amount she need to put in the bank now.

r = 12% = 0.12

t =  years.

Substitute these in [1] to solve for P:

⇒

⇒

Divide both sides by 1.97382269 we get;

$6,079.57344  =P

Therefore, $6,079.58 does she need to put in the bank now if the interest rate is 12 percent per yea

answer: it is 1: 47 pm

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!