186k views
4 votes
Jaquez completed 1/8 of his test in 3/5 hour. If Jaquez's rate stayed the same, how much of his test was finished in one hour. Show Work!

(A) 3/40
(B) 1/24
(C) 1/12
(D) 5/24

User Cube Drone
by
6.4k points

2 Answers

4 votes

Answer:

Option (d)

5/24

Step-by-step explanation:

Hour taken to complete 1/8 of his test=3/5 hour

Suppose r is the rate at which Jackuez completes his test

For completing the test in t hours

The equation is

y= r t

where y is the part of test which will be completed in t hour

with the information given

substituting the values


(1)/(8)=r (3)/(5)


r=(5)/(24)

now when t=1 hour

substituting the value


\mathrm{x}=(5)/(24) * 1


\mathrm{x}=(5)/(24)

hence at 1 hour his test was completed
(5)/(24)

User Avizzini
by
6.4k points
3 votes

Answer:
(5)/(24)

Step-by-step explanation:

Let
r be the rate at which Jaquez completes his test.

Let
x part of test be completed by Jaquez in
t hours.

Then,


x=rt

Given that Jaquez completed 1/8 of his test in 3/5 hour.

So,
(1)/(8)=r* (3)/(5)


r=(5)/(24)

To know how much he completes in one hour,substitute
1 in the above equation.

So,
x=r* 1=(5)/(24)

Jaquez completes
(5)/(24) of his test in
1 hour

User SDsolar
by
5.9k points