1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alexeev081 [22]
3 years ago
11

Carrie can inspect a case of watches in two hours. Jerry inspects a case in five hours. After inspecting a case for a half an ho

ur, Carrie takes a break. In the mean time, Jerry takes over and completes the job, how long did this take him?
Mathematics
2 answers:
steposvetlana [31]3 years ago
4 0

Answer:

It will take Jerry 3 hr 45 minutes to complete the work.

Step-by-step explanation:

Let Jerry takes x hours.

Carrie's rate = 1/2 case/hr

Jerry rate's = 1/5 case/h

We know that work done =rate x time

So, Carrie work + Jerry work = 1 job complete

x = 15/4 =

= 3 hr 45 minutes

Hence, it will take Jerry 3 hr 45 minutes to complete the work.

masha68 [24]3 years ago
3 0
Write the hours as ratio

Carrie : Jerry
   2      :    5

Put this ratio in words, we say 'for every two hours Carrie takes to inspect a case, Jerry would need 5 hours'

Carrie has done 30 minutes on a case before taking a break. It means Carrie has 1.5 hours left on the case if she was to continue it. 

We need to work out the proportion of the time Jerry would take in comparison to 1.5 hours that Carrie would have taken.

First, we divide 2 by 1.5 ⇒ \frac{2}{1.5}= \frac{4}{3}

Then we divide 5 by 4/3 ⇒ \frac{5}{4/3} = \frac{5*3}{4} =3.75 hours

Jerry would have taken 3.75 hours to finish the rest of the case
You might be interested in
What is the volume of a sphere with a diameter of 5 in? Round your answer to the nearest hundredth of a cubic inch.
Anettt [7]

if the sphere has a diameter of 5, then its radius is half that, or 2.5.

\bf \textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=2.5 \end{cases}\implies V=\cfrac{4\pi (2.5)^3}{3}\implies V=\cfrac{62.5\pi }{3} \\\\\\ V\approx 65.44984694978736\implies V=\stackrel{\textit{rounded up}}{65.45}

3 0
3 years ago
Triplicate ratio of 2:1 is​
castortr0y [4]

Answer:

8/27

Step-by-step explanation:

The triplicate ratio of 2:3 is 2^3/3^3 = 8/27

HAVE A GREAT DAY!

3 0
2 years ago
Which equation is equivalent to 2/3 x -5 / 6 equals -5 / 12 x + 1 / 4​
cluponka [151]

Answer:

13x=13

Step-by-step explanation:

...............

6 0
2 years ago
Simplify completely 7x^2+140x+700/x^2+10x-24
iren [92.7K]

Answer: 707x^2+150x-24

6 0
3 years ago
Can somone help me solve this
babunello [35]

Answer:

solid shade above

Step-by-step explanation:

graph line same way you would if it was an equal sign

all the y's that are greater are above the line

its solid because is greater than OR equal to. Equal to includes the line itself as a set of solutions

7 0
3 years ago
Other questions:
  • At the theater one section of seats has eight rows with 12 seats in each row in the center of each of the first three rows are f
    7·1 answer
  • 16/ 1/2 - |-4| = 8+3
    10·1 answer
  • What’s the least common denominator for 1/6 and 7/8?
    13·1 answer
  • Write an expression to represent the pattern 19, 27, 35, 43
    11·1 answer
  • By definition present value is
    14·2 answers
  • 1. 2 |-9| <br> 2. 4 |-4| <br> 3. 1 |1| <br> 4. 11 |11| <br> 5. 9 |-2|
    7·1 answer
  • Verify X + y equal to y + X when:x=-8/9and y=-3/5​
    5·1 answer
  • Evaluate the factorial expression.<br> 19!<br> 16!(3 – 1)!
    8·1 answer
  • Help i will give branliest
    13·1 answer
  • (7u + 1)(3) simplified
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!