Question

Can Somebody Check My Work Im Not Sure Im Correct ??! Please

Answer 1

Question?

Answer 2

Ok I wrote this

Write a word problem describing the time it takes to complete an activity individually and with a friend.
Three Ballerinas can learn there dance in 5 hours.
An expert ballerina comes in and together with the three ballerinas they finish in 2.5 hours.
How long does it take for the expert ballerina to learn her dance alone ?

Answer 3

o.o

Answer 4

What's your answer?

Answer 5

My answer is this
x = Amount of dance moves one ballerina learn's in an hour
y = Amount of dance moves an expert ballerina learn's in an hour
3 x 5 = 15x The amount of the whole routine.
3 x 2.5 = 7.5y Which is also the amount of the routine but with the expert ballerina.
Now we write :
15x = 7.5x + 2.5y = y = 3x - Now T is the time it takes the expert ballerina to learn her routine.
15x = y*t = 15x = 3x*t = T = 5 So an expert ballerina takes up to 5 hours in order to learn her routine.
Let alone the expert ballerina takes up to 5 hours which is what three ballerinas would take to completely learn the routine.

Answer 6

Looks good to me. @carolina4567

Answer 7

Yeah, that looks fine.

Answer 8

Really ? Omg Thanks I was worried

Answer 9

@phi

Answer 10

I think "learning dance moves" is not the kind of problem you want to do. Two dancers don't learn twice as fast as one dancer, and two dancers don't finish a dance twice as fast as one dancer.

On the other hand, if two people were washing a car, or the dishes, or mowing the lawn, it should be clear that two people will be faster than just one person.

The question mentions
***the time it takes to complete an activity individually and with a friend***
I would have only one person (you) and then two people (you and your friend)
working on a simple chore. Folding the laundry or something like that.

Can you try that ?