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
lions [1.4K]
3 years ago
13

What is the answer20+8r=-4r+5r

Mathematics
1 answer:
Naily [24]3 years ago
5 0

Answer:

The answer is r = -20/7

Step-by-step explanation:

20 + 8r = -4r + 5 r⇒ collect like term

20 + 8r = r⇒separate different terms in different  sides

20 = r - 8r

20 = -7r⇒divide both sides by -7

r = 20/-7

r = -20/7

You might be interested in
Gasoline mileage of a car is 40 mph. On a smooth road, it’s milage is 5% higher. What is it’s milea on a smooth road?
scZoUnD [109]

It helps to think of a simpler problem. Let's say mpg is 20 and 10% higher on a smooth road.

How many miles will you get with one gallon on a regular road?

How many more miles will you get on a smooth road? 10% more, right? How much is that?

OK - so you've now solved a simpler problem. Use the exact some process to solve your, more complicated, problem.

4 0
3 years ago
Read 2 more answers
Solve for s in terms of r, t, and u.<br> r= -tus<br><br> s=
julsineya [31]

Answer:

s=\frac{r}{-tu}

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
Find the surface area of the following figure.
marin [14]

Answer:

144

Step-by-step explanation:

just split the shapes and find the area of each shape then add the answers all together

5 0
3 years ago
HELP PLEASE I NEED HELP WITH THIS PROBLEM !!!!!!
scZoUnD [109]
Less than or equal to   first equation (solid line)

less tha second equation ( the dotted line)


so its d



3 0
3 years ago
A triangle has a base of 15 feet and a height of 9 feet. What is the area of the triangle? Label the figure. Write the formula,
bazaltina [42]

Answer:

135...................

8 0
3 years ago
Other questions:
  • 17.) Bonus question ! All or nothing
    7·2 answers
  • Help me with this geometry question please
    13·1 answer
  • Terry bought some gum and some candy. The number of packs of chewing gum was one more than the number of mints. The number of mi
    9·2 answers
  • Sam bought 9.8 gallons of gas for $37. 73 . How much did he pay in gas
    13·1 answer
  • 216016 divided by 368
    12·2 answers
  • If a person has 3 apples and he ate 2 how many apples are left
    8·2 answers
  • If you do this for me ill give you brainliest and 20points :)
    14·1 answer
  • You invest $125,000 in an account that earns 4.75% annual
    12·1 answer
  • If milk goes bad if not refrigerated, why does it not go bad inside the cow?
    12·2 answers
  • 7) Find EC<br> 16<br> E-<br> B<br> D<br> С<br> 49<br> 30
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!