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
slamgirl [31]
3 years ago
12

Add the following expressions: 3r - 7 and -10r + 2 -13r-9 13-5 O -7r - 9 -7r -5

Mathematics
2 answers:
Ksju [112]3 years ago
5 0

Answer:

Step-by-step explanation:

-7r - 5

<em>Hope that helps! :)</em>

<em></em>

<em>-Aphrodite</em>

love history [14]3 years ago
3 0

Answer:

-7r - 5

Step-by-step explanation:

3r - 7 and -10r + 2

*remember that you can only combine the like terms

3r - 10r = - 7r

-7 + 2 = -5

Final Answer: -7r - 5

You might be interested in
if i have a 65.05% (D) in a class and i get a 100% on an assignment that worth 10% of my grade, what would my grade be
lord [1]
I’m pretty sure you would have a 72% which would be a low C but maybe still passing. My schools passing grade is 70%. You would have to see what a passing grade is in your school.
4 0
2 years ago
Can someone help me with number 7 and 8 pls​
Leto [7]

8.romb

Step-by-step explanation:

thats all I know

5 0
3 years ago
Read 2 more answers
Use traditional algorithm to find the quotient 3 ) 137
GarryVolchara [31]
Multiply 137 by 3 to get an answer of 411
4 0
3 years ago
A sports ball has a diameter of 27 cm. Find the volume of the ball. cm.) Round your answer to the nearest tenth if necessary.​
Anestetic [448]
To calculate the volume of a sphere you must use the formula
v=4/3pir^3

The radius (r) is half of the diameter
r=13.5

v=4/3pi13.5^3
v=10305.99

Therefore the volume of the sports ball is 10306cm^3 (to the nearest tenth)
8 0
2 years ago
How do you solve You earn 15n 15n dollars for mowing n lawns. How much do you earn for mowing one lawn? Seven lawns?
Rudik [331]

Answer:

$15 for a lawn, $105 for seven lawns.

Step-by-step explanation:

The question is about the direct ratio problem. Logically, you will earn more if you mow more lawn.

The scheme for this ratio is given below:

15 n_________n lawns

   x_________ 1 lawn

x=\frac{15n*1}{n} = 15

You will earn 15 dollars for mowing a lawn


When you mow 7 lawns, the scheme will be in this manner:

15 n__________n lawns

    x__________7 lawns

x=\frac{15n*7}{n}=105

You will earn 105 dollars

8 0
3 years ago
Other questions:
  • Describe the y-intercept and end behavior of the following graph:
    9·1 answer
  • Polynormual sum of (x^2+9)+(-3x^2-11x+4)
    15·1 answer
  • What is the slope of the line that passes through the points (-2,-12) and (1,-3)?
    9·2 answers
  • A line has a slope of 7 and a y-intercept of -15.
    14·1 answer
  • Please help me on 37 and 38.
    11·1 answer
  • 4.
    15·1 answer
  • Somebody please help me !!!!
    9·1 answer
  • A large aquarium should contain 10,000 liters of water when it is filled correctly. It will overflow if it gets up to 12,000 lit
    13·1 answer
  • Help please please help
    9·1 answer
  • Which is the BEST estimate for the value of x?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!