Answer:
65
Step-by-step explanation:
20 times 5 equals 100, so 13 times 5 is 65 so 65 percent
72=5x-98
5x=72+98
5x=170
x=34
y=180-72=108
Answer:
Part 1)
Part 2) There are about
Step-by-step explanation:
Part 1) we know that
1 month=4 weeks
Let
x------> the number of hours of practice for three months
so
Convert months to weeks
3 months=3(4)=12 weeks
using proportion
that means------> In three months (12 weeks) the pianist practice 180 hours
Part 2)
Let
x------> the number of bass
y------> the number of catfish
we know that
Using proportion
There are about
305-275=30
Since there is a difference of 6 yaers between 2010 and 2004, you devide 30 by 6 which equals to five. Therefore each year there was an increase of 5 students in the band.
If the rectangular prism gives you its width, length, and height, you just multiply those, so the volume is 11*14*3. If there's anything more complicated going on, I'll need to see the rectangular prism.