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
snow_lady [41]
3 years ago
8

Janet an experienced shipping clerk can fill a certain order in 5 hours . Tom a new clerk needs 8 hours to do the same job. work

ing together how long will it take them to fill the order
Mathematics
1 answer:
aksik [14]3 years ago
7 0

Janet can fill a certain order in 5 hours, therefore she performs 1/5 of the order within 1 hour.

Tom needs 8 hours to do the same job, therefore he performs 1/8 of the order within 1 hour.

Working together, they make 1/5 + 1/8 orders within 1 hour.

Let <em>t</em> mean the number of hours they need. Then we have equation:

\left(\dfrac{1}{5}+\dfrac{1}{8}\right)t=1\\\\_{\text{use}\ \frac{a}{b}+\frac{c}{d}=\frac{ad+bc}{bd}}\\\\\dfrac{(1)(8)+(1)(5)}{(5)(8)}t=1\\\\\dfrac{8+5}{40}t=1\\\\\dfrac{13}{40}t=1\ \ \ \ |\text{multiply both sides by 40}\\\\13t=40\ \ \ \ |\text{divide both sides by 13}\\\\t=\dfrac{40}{13}\\\\t=3\dfrac{1}{13}\\\\Answer:\ 3\dfrac{1}{13}h=3h\ \dfrac{60}{13}min\approx3h\ 5min

You might be interested in
Whats the area? thanks!
AlladinOne [14]
The area is 279. You do 11×19 to get the bottom portion. That will give you 209. Then for the top subtract 11 from 18 to get that side length and then do 7×10. With that you will get 70 and then you add 209 to that. 209+70=279.
8 0
3 years ago
***10 Points*** <br> Deals with Quadratic Functions
madam [21]
Q(x) is just a fancy way of saying y, so when the graph intersects the x-axis, that will be your answer (which is A. -4)
3 0
3 years ago
The expression 34−10+3+2=78 is an example of
Jobisdone [24]

Answer: simplifying expression

Step-by-step explanation:

7 0
3 years ago
Im very confused on this please help me:)
drek231 [11]

The constant rate of change is how much y increases every time x increases by 1. We might be confused because in this table, we see a number of points, but we don't see any consecutive x-values, so it might seem difficult. But no worries!

All you have to do is calculate using the formula, Δy divided by Δx. What does Δy divided by Δx mean?

All we have to do is look at two points. Let's take, for example, (-2, -10) and (2, -8).

-2 and 2 are the x-values of the points and -10 and -8 are the y-values of the points as coordinates are in the format of (x, y).

All we have to do is minus the y-coordinates and then proceed the minus the x-coordinates. The order does not matter, as in you can do either of these ways:

[(-10) - (-8)] ÷ [(-2) - (2)] = -2 / -4 = 1/2

or

[(-8) - (-10)] ÷ [(2) - (-2)] = 2 / 4 = 1/2

So the constant rate of change or the answer is 1/2.

4 0
3 years ago
Read 2 more answers
PLEASE HELP
lbvjy [14]

any other details you could give me ?

8 0
4 years ago
Other questions:
  • Solve the system of equations given by 5x - 2y = -6 and 15x - 6y = 6
    9·1 answer
  • What is the point slope form of a line with slope 3/2 that contains the point (-1,2)?
    13·1 answer
  • Lola has twice as many quartes and half as many nickels as does ellen. ellen
    7·1 answer
  • The interest of rs12000 for 3yrs is rs2160.find the rate of interest<br>​
    14·1 answer
  • What kind of situations can be modeled with exponential growth or exponential decay functions?
    14·1 answer
  • If x=1/4 and y=3/7, evaluate the following expression: 7x−4y
    11·1 answer
  • A biologist estimated that the current population of ladybugs in the region was 8.3 × 106. He predicts that a swarm of 950,000 l
    8·1 answer
  • Lauren is going to invest $740 and leave it in an account for 9 years. Assuming the
    12·2 answers
  • Can you solve this exercise?<br> please solve so I understand
    5·2 answers
  • What is the solution to the given inequality? 1/2-1/4x&gt;-1/4
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!