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
SCORPION-xisa [38]
3 years ago
12

The teacher is saying the answer is 7/15. how did she get that?

Mathematics
1 answer:
balu736 [363]3 years ago
8 0
I think this is how
<span /><span><span><span>you change the - to a +
8/12 + -1/5 then
2/3+-1/5 then
10/15+-3/15

10+-3
---------
15

7/15
</span></span></span>
You might be interested in
Assuming all model requirements for conducting the appropriate procedure have been​ satisfied, is the mean IQ of the students
Triss [41]

Answer:

Step-by-step explanation:

The right statistical procedure is by applying a hypothesis test that uses a single mean. Here, if we are to talk about comparison, it should be between the mean IQ of the students in the class and the national average IQ. The class is not for a comparison between two population means because it is viewed as the sample of the population. That is to say, the required task is to determine if the sample mean is greater than the population mean. We can conclude that this obeys a hypothesis test rather than a confidence interval.

6 0
3 years ago
A child 4 feet tall casts a shadow 6 feet
klio [65]

The Answer should be C) 40.5 feet

3 0
3 years ago
Robert slices a large loaf of bread to make 12 sandwiches. He made 3 turkey sandwiches and 5 veggie sandwiches. The rest are ham
lions [1.4K]
We already know that there are 12 sandwiches.

If there are 3 turkey and 5 veggie then there's 8 out of 12 sandwiches that aren't ham.

12 sandwiches - 8 non-ham sandwiches = 4 ham sandwiches

Now we know there are 4/12 ham sandwiches

We need to simplify this now.
4/12 can be divided by 4

4 goes into 4 1 time and 4 goes into 12 3 times making the answer 1/3

1/3 of the sandwiches are ham.
3 0
3 years ago
Brainly the polynomial x 3 + 5x 2 - ­57x -­ 4189 expresses the volume, in cubic inches, of a shipping box, and the width is (x+3
Simora [160]
Height would be 21 inches, depth would be 5. 
8 0
3 years ago
Find the value of x.<br> 140°<br> 40<br> 2x<br> A. 50<br> B. 90<br> C. 20<br> D. 70
Temka [501]
B is the answer
Hope this help help
7 0
3 years ago
Other questions:
  • Which expression is equal to (3x−5)(2x−7)?
    8·2 answers
  • Which equation has 1 solution?
    11·1 answer
  • The graph of which function has a minimum located at (4, –3)?
    10·2 answers
  • A baker is making rolls. He has 20 pounds of dough. Each roll is made from 1/8
    7·1 answer
  • Tristan’s fish is 1/2 yard long, 1/6 yard wide, 1/3 yard high. What should the side lengths of each cubic block used to find the
    7·1 answer
  • What is the value of the expression below when z=2<br><br> 4z2-3z-4 please help
    11·1 answer
  • If you have your net worth and assets, how do you get your liabilities?
    15·1 answer
  • 600 can be written as 2º * b c
    9·1 answer
  • Pleas help me! dont scroll! help meeeeeeeeeeeee!
    10·1 answer
  • Find the mean monthly subscription fee? Round your answer to the nearest cent.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!