Riley has $60 and her brother has $120.Riley saves $7 per week. Write an equation that represents the number of weeks, x,it will take them to have the same amount of money?

60 + 7x = 120

Step-by-step explanation:

Money with Riley at beginning = $60

Money saved by Riley in 1 week = $7

Her brother has $120

let there be x weeks in she saves money to make it equal to what his brother has (i.e $120)

Money saved by Riley in x week = $7*x = $7x

total money with riley after x weeks= Money with Riley at beginning  + Money saved by Riley in x week   = 60 + 7x

but it is given that she has same amount as his brother

60 + 7x = 120

=> 7x = 120 - 60 = 60

=> x = 60/7 = 8 4/7

4/7 = 4 days as one week has 7 days

Thus, it will take   8 weeks  4 days to have the same amount of money

Required equation is 60 + 7x = 120.

4

step-by-step explanation:

6 (donuts) divided by 3 is 2.

so 2/3 means 2 times 2, which is 4/6.

you get two and your friend gets four.

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.