Question

19.At a dairy it takes 90 seconds to fill 30 one-gallon jugs of milk. How
many minutes does it take to fill 90 jugs of milk?

A. 1
B. 3
C. 3.5
D. 4
E. 4.5

Answer 1

Hint: Figure out how many seconds it takes to fill 90 jugs, then convert seconds into minutes.

Answer 2

thats the question.

Answer 3

answer is E.

Answer 4

now go help me

Answer 5

@jaja how explain please.

Answer 6

@waterineyes

Answer 7

@KingGeorge help here please.

Answer 8

Second hint:

Set up a proportion:

\(\frac{90 \space\text{seconds}}{x \space\text{seconds}} = \frac{30 \space\text{jugs}}{90 \space\text{jugs}}\)

Solve for x, then convert to minutes

Answer 9

4.5

Answer 10

90/30 *90sec=90/30 *1.5min=4.5 min

Answer 11

Time (Sec) : Milk Jugs = Time(Sec) : Milk Jugs

90 : 30 = x : 90


So:

\[\frac{90}{30} = \frac{x}{90}\]

\[\frac{x}{90} = 3\]

\[x = 270\; (Seconds)\]

So to convert it into minutes divide it by 60:

\[270 \; Seconds = \frac{270}{60} \implies \color{blue}{4.5 \; \; minutes.. }\]