Donna teaches dance in groups of five students. She rents a hall for the dance classes at $450 per month. She charges $40 per hour per student. Donna teaches four groups of students, and her net earnings per month are $4,350.

Part A: If each student learns dance for the same number of hours, write an equation that can be used to calculate the number of hours each student learns dance in a month. (5 points)

Question

Donna teaches dance in groups of five students. She rents a hall for the dance classes at $450 per month. She charges $40 per hour per student. Donna teaches four groups of students, and her net earnings per month are $4,350.

Part A: If each student learns dance for the same number of hours, write an equation that can be used to calculate the number of hours each student learns dance in a month. (5 points)

undeadknight26 · Answer

Just need an equation i should be able to solve it.

undeadknight26 · Answer

@SolomonZelman

solomonzelman · Answer

Can you write out the equations for this question?

solomonzelman · Answer

$$student~\times~hours~\times~40=4350+350=4800$$
+350 because even when she pays 350 she gets 4350.

solomonzelman · Answer

$$hours~~=~~4800~~\div~~40~~=~~120$$

solomonzelman · Answer

$$120~\div~5~=~24$$because there are 5 students.

undeadknight26 · Answer

oh ok thx!  but why does she have to pay 350?

solomonzelman · Answer

oh it's +450, not 350.

solomonzelman · Answer

but the answer is same.

undeadknight26 · Answer

oh ok.

undeadknight26 · Answer

and arent there 20 students because 5 x 4?

solomonzelman · Answer

$$4350+450=4800$$$$4800~\div~40=~120$$$$120~/~5~=~24$$

solomonzelman · Answer

4 groups?

solomonzelman · Answer

All I know it is 24 hours per group.

solomonzelman · Answer

in a month.

solomonzelman · Answer

To find the number of hours per student, you would need to divide 24 by number of students.

the PROBLEM is that the number of students is NOT GIVEN.

undeadknight26 · Answer

Yes there are 4 groups so that means the answer is each student works for 6 hours?

solomonzelman · Answer

You aren't given the number of students per group though, so I can only say
24h per group each month.

undeadknight26 · Answer

Donna teaches dance in groups of five students.
and later they say there are 4 groups :p heheh

undeadknight26 · Answer

can you help me with a few more?

solomonzelman · Answer

I might be able to, but my sister has an engagement party and I have to always leave and help at different times. (Not incl. other circumstances)

undeadknight26 · Answer

lol well tell her that the undead wishes her a good luck...it'll scare the crab out of here if you say it creepily...

solomonzelman · Answer

I don't want to scare her like that....

solomonzelman · Answer

She would be like "wtf" (in a different form of course) but ty for a good wish.

undeadknight26 · Answer

hehe your too good of a person...

solomonzelman · Answer

Me? nice to hear that some people think I am nice (as opposed to what my little brother thinks when he steals my $300 headphones a 10th time...)

undeadknight26 · Answer

lol ahahah...im a pranker and i say a opportunity like that only comes once in a life time...lol lucky 300 dollar headphones...i got 15 dollar ones hahah..