If there are 12 movies and a person can rent three, then there are 220 different combinations they can be rented in.
Answer:
27.85 remainder 7
Step-by-step explanation: devide something
Maria will make 10% on 5,000 for the motorcycle and 15% on 25,000 for the car she sold
Let the initial number of girls be x, this represents 40% of the dancers.
Total number of dancers will therefore be:
100/40*x=2.5x
When 15 more girls joined, the new number of girls was:
x+15 this represents the total percentage of 52%. The new number of dancers became:
2.5x+15:
therefore the new percentage of girls can be expressed as follows:
(new number of girls)/(new number of dancers)×100
(x+15)/(2.5x+15)×100=52
(x+15)/(2.5x+15)=0.52
x+15=0.52(2.5x+15)
x+15=1.3x+7.8
15-7.8=1.3x-x
7.2=0.3x
x=7.2/0.3=24
The number of students after additional number of girls will be:
2.5x+15
=2.5×24+15
=60+15
=75 students
1. 29-5 is 24 not negative -24, if you calculated 5-29 it's -29
2. I really don't know ;(
3. no solution
