Question

i'm so bad with fractions help?

Teresa's penny bank is 1/2 full. After she removes 200 pennies, it is 3/10 full. How many pennies can Teresa's bank hold?

Answer 1

@kelliegirl33 do you know how to do this?

Answer 2

you can say let the penny bank =x
so 1/2x= 200+3/10x
solve for x.

Answer 3

do you see how I got this equation?

Answer 4

is there supposed to be an x after 3/10?

Answer 5

yes because there are 3/10 of the bank left.

Answer 6

@jbrocksmysocks96, can you love for x?

Answer 7

wouldn't it be 1/2x - 200 = 3/10x

Answer 8

see it is the same, kelliegirl33.

Answer 9

oh yes it is.....I see now

Answer 10

im confused on how to start?

Answer 11

1/2x - 200 +200 -3/10x = 3/10x +200 -3/10x

Answer 12

you add (+200 -3/10x ) to each side.

Answer 13

okay wait. which equation am I using? uh im so confused.

Answer 14

1/2x = 200 + 3/10x (multiply the entire equation by 10 to get rid of the fractions)

5x = 2000 + 3x.....now solve for x

Answer 15

so it would be 2x=2000
x=1,000?

Answer 16

Yes!

Answer 17

check it...
1/2(1000) = 200 + 3/10(1000)
500 = 200 + 300
500 = 500 (correct)

yes..it is 1000

Answer 18

okay, I have another fraction problem can you help me?

The container that holds the water for the football team is 1/3 full. After pouring out 6 gallons of water, it is 1/9 full. How many gallons can the container hold?

Answer 19

1/3x - 6 = 1/9x (multiply the entire equation by the LCD, which is 9, to get rid of the fraction)

3x - 54 = 1x....solve for x

Answer 20

do you minus 3x? from each side?

Answer 21

I would

Answer 22

so -54=-2x
so 27=x

Answer 23

lets check it...
1/3(27) - 6 = 1/9(27)
9 - 6 = 3
3 = 3 (correct)

yes....27 gallons

Answer 24

thank you!!

Answer 25

anytime :)