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
lara31 [8.8K]
3 years ago
12

7r - 8rhow to combine like terms ​

Mathematics
1 answer:
Sedaia [141]3 years ago
6 0
-r

Step by step:
7r+(-8)
7r+(-8r)
-r
You might be interested in
Solve for a side in right triangles
natita [175]

Answer:

  2.30

Step-by-step explanation:

The side of interest is opposite the given angle, and the hypotenuse is given. The sine relation tells you ...

  sin(A) = a/c

  a = c·sin(A) = 3·sin(50°)

  a = BC ≈ 2.2981 ≈ 2.30

5 0
3 years ago
Marina earns $15 for 1 hour of babysitting, $23 for 2 hours of babysitting, and $31 for 3 hours of babysitting. Write a function
Alja [10]
This isn't proportional 

5 0
3 years ago
Read 2 more answers
A local Pennysaver charges $11 for each of the first three lines of a classified ad, and $5 for each
krok68 [10]
What’s the question?
6 0
2 years ago
Read 2 more answers
Alicia walks 4 miles in 1 hour and can speed walk 5 miles in 1 hour. What percent of Alicia's average speed walking rate is her
RSB [31]

Answer:

The % Alicia speed walking is 125 % of average walking

Step-by-step explanation:

Given as :

Distance cover by Alicia while walking = 4 miles

Time taken                                               = 1 hour

So, Speed of Alicia while walking = \frac{Distance}{Time}

Or,                                            S 1  =  \frac{4 miles}{1 hour}

I.e                                              S 1  =  4 mph

And

Distance cover by Alicia while speed walk  = 5 miles

Time Taken                                                      = 1 hour

So, Speed of Alicia while speed walking = \frac{Distance}{Time}

Or,                                            S 2  =  \frac{5 miles}{1 hour}

I.e                                              S 2  =  5 mph

Or,   % Rate = \frac{5}{4} ×100 = 125

Hence The % Alicia speed walking is 125 % of average walking  Answer

4 0
3 years ago
Read 2 more answers
I need help please!!! thank you so much to the person who is going to help me.
zaharov [31]

Answer:

22x - 14

Step-by-step explanation:

pretty sure its like this..

3(4x-3)+5(2x-1)

= 3×4x + 3×(-3) + 5×2x + 5×(-1)

= 12x + (-9) + 10x + (-5)

and according to the rules of multiplying negative by positive...

= 12x - 9 + 10x - 5

combine like terms using the symbols on its left

= 12x + 10x - 9 - 5

= 22x - 14

8 0
2 years ago
Read 2 more answers
Other questions:
  • 1 yard = 3 feet and 1 mile = 5280 feet, how many yards are there in 3 miles?
    14·2 answers
  • Suppose that the IQs of university​ A's students can be described by a normal model with mean 140 and standard deviation 8 poi
    14·1 answer
  • Which of the following expressions is in simplified form?
    7·1 answer
  • Help please I don’t understand it show work
    7·2 answers
  • A tent has a conical roof and cylindrical wall as shown. The cylindrical wall and conical roof are of the same height. The radiu
    5·1 answer
  • If A, B, and C are collinear, and AB = 18, AC = 41, what is a possible measure of BC?
    13·2 answers
  • Measure the angle and classify it as right,acute, or obtuse
    14·1 answer
  • ((11-7)+(14/7)^2)=<br> A. 4<br> B. 2<br> C. 5<br> D. 8
    12·1 answer
  • What three rational numbers are between <br> 7/12 and 7/11
    5·1 answer
  • What are the x and y intercepts of the equation -2x +3y=10
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!