Question

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Answer 1

1/15 + 1/x = 1/20

start by multiplying both sides by 60

Answer 2

4+60=3?

Answer 3

@Vocaloid

Answer 4

don't forget the x

Answer 5

4+60x=3?

Answer 6

(whoops, I forgot a negative sign)

should be 1/15 - 1/x = 1/20

which gives us

4 - 60/x = 3

Answer 7

-60/x=-1?

Answer 8

yes

Answer 9

now multiply both sides by x

Answer 10

-60=-1x

Answer 11

good, so x = ?

Answer 12

60?

Answer 13

right, so x = 60 minutes

Answer 14

one more?

Answer 15

sure

Answer 16

Byron can fill a drying rack with dishes in 15 minutes. While Byron fills the drying rack, Emmitt takes dishes out of the drying rack and puts them in bins. With Emmitt taking dishes out of the drying rack, it takes 35 minutes for Byron to fill the drying rack.

Which of the following can be used to determine the amount of time it takes for Emmitt to empty the drying rack if Byron is not adding dishes?

1 over 15 plus 1 over 35 equals 1 over x
1 over 15 minus 1 over x equals 1 over 35
1 over 35 minus 1 over x equals 1 over 15
1 over 15 minus 1 over x equals x over 35

Answer 17

vocaloid?

Answer 18

1/15 - 1/x = 1/35

same rule as last time

Answer 19

we don't actually need to solve for x this time ofc

Answer 20

B?

Answer 21

B right?

Answer 22

yes

Answer 23

thx i got a 100