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
Anna007 [38]
3 years ago
15

-(x-10)=7 solve for x and show work.

Mathematics
2 answers:
Pavel [41]3 years ago
7 0
X=3 because -(3-10)= 7
you add the opposite of the opposite of 3 :D
artcher [175]3 years ago
3 0

-(x-10)=7 \ \ \ \ | omit\ the\ bracket\\\\
-x+10=7\ \ \ \ | subtract\ 10\\\\
-x=-3\ \ \ | multiply\ by\ -1\\\\
x=3
You might be interested in
Solve for x. -5x + 13 = -17
Lana71 [14]

Subtract 13 from both sides

-5x = -17 - 13

Simplify -17 - 13 to -30

-5x = -30

Divide both sides by -5

x = -30/-5

Two negatives make a positive

x = 30/5

Simplify 30/5 to 6

<u>x = 6</u>

7 0
3 years ago
Read 2 more answers
The Environmental Protection Agency (EPA) publishes fuel economy values that are known to be good estimates of the fuel economy
r-ruslan [8.4K]

Answer:

The 90% confidence interval for the mean combined fuel economy for Ford Explorers is between 22.95 and 23.63 mpg.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 16 - 1 = 15

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 15 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 1.7531

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.7531\frac{0.78}{\sqrt{16}} = 0.34

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 23.29 - 0.34 = 22.95 mpg

The upper end of the interval is the sample mean added to M. So it is 23.29 + 0.34 = 23.63 mpg

The 90% confidence interval for the mean combined fuel economy for Ford Explorers is between 22.95 and 23.63 mpg.

7 0
3 years ago
Smallest to largest.
KATRIN_1 [288]
The answer is c,b,a. I’m pretty sure
3 0
3 years ago
250 calls in 10 hours = _ calls in 15 hours
ipn [44]
250 calls in 10 hours = 375 in 15 hours
5 0
3 years ago
Read 2 more answers
How much is a milliliter
Sphinxa [80]
-- 236 of them make 1 cup
-- 946 of them make 1 quart
-- the volume of a tiny cube that's 1 centimeter along each edge
-- 16.4 of them in a little cube that's 1 inch along
-- 4.9 of them make a standard cooking teaspoon
-- a perfume that cost $50 an ounce would cost $1.69 per milliliter
3 0
4 years ago
Read 2 more answers
Other questions:
  • Students in a random sample of 57 students measured their handspan. The dot plots display the results for the males and females.
    15·1 answer
  • Draw a graph of the rose curve. r=-3 sin 50, 0 greater than or equal to θ less than or equal to 2pi
    6·1 answer
  • a 15 foot ladder is leaning against a building .How High up on the building will the ladder reach when the bottom of the ladder
    5·2 answers
  • What is pi in math....
    7·2 answers
  • Expand: ln 2a^3/b^4<br><br>Help me out cuh
    10·2 answers
  • Help me plzzzzzzzzzzzzzzzzzz.
    6·1 answer
  • Can someone answer a b c or d? thanks!
    7·2 answers
  • 68. Find the volume of this square-based
    15·1 answer
  • PLEASE HELP ME!!!! ITS REALLY URGENT!
    11·2 answers
  • Order these numbers in ASCENDING order. 0.7 2/3 6/8 65%​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!