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
natka813 [3]
2 years ago
11

Question 4

Mathematics
1 answer:
polet [3.4K]2 years ago
7 0

Answer:

12/7 hours

Step-by-step explanation:

First find the rate for hour for the two. For Lianne she can do 1/3 of the job per hour. For Julie she can do 1/4 of the job per hour.

Adding them together, 1/3+1/4= 7/12.  

This 7/12 means that working together they can finish 7/12 of a job in an hour. We can use the speed*time=distance formula here and see that

7/12 * time = 1 job done

time = 12/7 hours.

You might be interested in
Please help me no one even bothers to help so plzzzz i BEGGGGGGGGGGG
user100 [1]

Answer:

Here's what I get.

Step-by-step explanation:

When you dilate an object by a scale factor, you multiply its coordinates by the same number.

If the scale factor is 4, the rule is (x, y) ⟶ (4x, 4y)

Your table then becomes

\begin{array}{lcl}\textbf{Vertices of}& \, & \textbf{Vertices of}\\\textbf{VWXY}& \, & \textbf{V'W'X'Y'}\\V(-1 ,1) & \quad & V'(-4, 4)\\W(-1, 2) & \quad & W'(-4, 8)\\X(2, -1) & \quad & X'(8 ,-4)\\Y(2, 2) & \quad & Y'(8, 8)\\\end{array}

The diagram below shows figure VVXY as a green bow-tie and its image V'W'X'Y' in orange.

The scale factor is greater than one, so the dilation is an enlargement.

7 0
3 years ago
50% of the surface area of a piece of bread is crust what is the height
andrezito [222]
The formula for surface area is SA = 2 (wl + hl + hw). Plugging in the numbers that we know, we get SA = 2 (100 + 10h +10h). We know that the crust accounts for half of the surface area.

The surface area was not provided so this is the closest I can go without the provided surface area. I hope this helps you :)
8 0
3 years ago
Of 5 Sarah, Fiona and David share £40 in a ratio 3:3:2. How much money does each person get?​
Olin [163]

Answer:

15

15

10

Step-by-step explanation:

3/8 x £40 = £15 for Sarah

3/8 x £40 = £15 for Fiona

2/8 x£40 = £10 for david

6 0
3 years ago
Read 2 more answers
Find the measure of an angle in a regular polygon with 22 sides​
KonstantinChe [14]
Find the sum of the interior angles of a 22-gon. Since the polygon has 22 sides, we can substitute this number for n: (n 2)180˚= (22 2)180˚= 20180˚= 3600˚. Each angle of a regular polygon measures 157.5˚.
8 0
3 years ago
Read 2 more answers
In a group of 31 students, 7 study both Art and Biology.
ale4655 [162]

Answer:

it is 358

Step-by-step explanation:

Hope this helped have an amazing day!

7 0
3 years ago
Other questions:
  • Gerry has 50 sports trading cards. Of those cards one fifth of them are baseball cards, one teenth of them are football cards, a
    15·1 answer
  • A cone has a height of 7 and a radius of 2 what is the surface area explain? please help
    6·1 answer
  • By the end of the summer Margot has saved $375. Recall that each of the small pieces of wood costs $3.
    9·2 answers
  • A corporation must appoint a president, chief executive officer, chief operating officer and chief financial officer. It also ap
    6·1 answer
  • What is the equation of a line that has a slope of one and passes through point (5,3)?
    11·2 answers
  • Write an equation in slope-intercept form for the line that satisfies the following condition.
    6·1 answer
  • 1.) Use the Pythagorean Theorem to determine if a triangle with side lengths 28ft., 45ft., 53ft. is a right triangle.
    5·1 answer
  • If f(x) = 2x, which of the following shows the graph of f(x) = 2(x) + 2?
    10·2 answers
  • Mike has $40, which is $6 more than twice the amount of money that Karly has. How much money does Karly have?
    7·1 answer
  • Help PLEASE I DONT GET IT
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!