Question

you split $1500 between two savings accounts.Account A pays a annual of 5% interest and account B pays for 4% annual interest. After one year, you have earned a total of $69.50 in interest. How much money did you invest in each account.

Answer 1

help

Answer 2

Please NAME the amounts assigned to each account.

Answer 3

what

Answer 4

A + B = 1500

0.05 A + 0.04 B = $69.50

Solve by first temporarily eliminating A or B,
so multiply the bottom equation by 20, then subtract it from the top.

That will give you an equation with B not A, which you can solve.

Lastly, the first equation will then give you A from A = 1500 - B.

Answer 5

ok thnaks

Answer 6

Seriously, NAME the amounts. dwc did not do this. I guess we are to assume that we know what "A" and "B" are. Please learn to WRITE clear and concise definitions.

Answer 7

thanks i meant to ask why do you have to multiply by 20

Answer 8

I thought the accounts were named: "A" and "B."

Answer 9

i didny get any accounts i just gave you the question i got for my homework that is the exact question i got

Answer 10

I chose to multiply by 20 to get the coefficient in front of A in the second equation = 1, so I could
then subtract the two equations and get rid of A temporarily.

Answer 11

0.05 is turned into 1 you get a

Answer 12

A

Answer 13

Once 0.05 is made into 1 etc, you can subtract the new equation from the top one and get B alone.

Answer 14

then you will be left with 0.08 = 69.50 but then what do i do

Answer 15

is that right?

Answer 16

No, I'll work it here:

A + B = 1500

0.05 A + 0.04 B = 69.50

1 A + 0.80 B = 69.50 x 20 = 1390

subtract

0.2 B = 1500 - 1390 = 110 so

B = 5 x 110 = 550

A= 1500 - B = 950

check 0.05(950) + 0.04(550) = ? = 69.50 checks

Answer 17

ohhh ok thanks b]