Answer:
−9r+4r
=−9r+4r
=−r+−r+−r+−r+−r+−r+−r+−r+−r+r+r+r+r
=−r+−r+−r+−r+−r
=−5r
Step-by-step explanation:
Answer:
They each used 60 dollars in total
Step-by-step explanation:
They each brought 12 dollars and if you multiply it by 5 that's how much they spent in total
Answer:
1000
Step-by-step explanation:
5% of my 20000 is 1000 so 21000 total or 1000 anually
Answer:
$40
Step-by-step explanation:
x is the original price of the gift
(10% of x) is the value of the discount
(10% of x) = 10/100 . x = 0.1 x
0.1 x is the value of the discount
x - (10% of x) is what was paid, after the discount
x - 0.1 x = 0.9 x
0.9 x is what was paid
4 children paid $9/each
4 times $9 = $36
$36 is the total amount that was paid by the children
$36 = 0.9 x
$36 / 0.9 = x
x = $36 / 0.9 = 360 / 9
x = 40
;-)
