77/5=99/x
77x=5*99
77x=495
x=495/77
x=6.4
she needs to study 6.4 hrs to get 99
Answer:
Let the hours when they equalize=h, then we have:
12.25 + .13h=13 - .09h
.13h + .09h=13 - 12.25
.22h=.75 divide both sides by .22
h=.75/.22
h=3 9/22, hours, when they will equalize.
Step-by-step explanation:
google lol i dont know whats going on here but.....
(20n+3)
n = number of hours = 1
(20(1)+3) = 23
$23
Answer:
0.6
Step-by-step explanation:
To find the answer, do 0.018 divided by 0.03 which equals 0.6
Hope this helps you!! :)
n= 0.6
