Question

Some one help me with a quick ALG word problem?

Answer 1

Tim has 40 coins consisting of dimes and quarters and the total value of 4.90. How many coins for each kind? Solve one step equation.

Answer 2

Could you show me just the equation?

Answer 3

40 = d + q
10x + 25x = 4.9

Answer 4

10x + 25y =4.9 *

Answer 5

@ganeshie8 @jim_thompson5910 @robtobey @nincompoop

Answer 6

"Tim has 40 coins consisting of dimes and quarters"

so d+q = 40

solve for d to get d = 40-q

Answer 7

The total value is $4.90, ie 490 cents

so


10d + 25q = 490

10(40-q) + 25q = 490 ... plug in d = 40-q


now solve for q and tell me what you get

Answer 8

q=-24

Answer 9

q = # of quarters

Answer 10

you can't have a negative number of quarters

Answer 11

400-10q+25q=40 right after I distribute

Answer 12

now 15q+400=40

Answer 13

15q=-360

q=-24

Answer 14

how did you get 40 on the right side?

Answer 15

opps 400

Answer 16

remember the equation before you distribute is

10(40-q) + 25q = 490

Answer 17

oh i got it q=6

Answer 18

me too

Answer 19

then you use that to find d

d = 40-q

d = 40-6

d = 34

Answer 20

yup i got you, thanks for the help man!!

Answer 21

you're welcome