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
diamong [38]
3 years ago
9

Solve for R: 28=4r+28

Mathematics
2 answers:
Alex Ar [27]3 years ago
8 0

Answer:

r = 0

Step-by-step explanation:

28 = 4r + 28

0 = 4r  (subtracted 28 from both sides)

r = 0  (divided 4 from both sides)

tatiyna3 years ago
4 0

Answer:

r= 14

Step-by-step explanation:

You might be interested in
How many solutions does the following equation have? (5 points)<br> 4x+ 12 = 0
zhenek [66]
One solution ! Which is x=-3
8 0
3 years ago
Solve the system of equations using the substitution method. 2x+8y=4 x=−3y+5
goldenfox [79]
Since x=-3y+5, substitute x for -3y+5. 

2(-3y+5)+8y=4

Distribute. 

-6y+10+8y= 4

2y+10= 4

Subtract 10 on both sides. 

2y=-6

Divide by 2.

y=-3

Plug in y=-3. 

x=-3(-3)+5
x= 9+5
x=14

(14,-3)

We can check this. 

2(14)+8(-3)=4
28-24=4
4=4 <== this works

I hope this helps!
~kaikers
7 0
3 years ago
Solve c = ab? for b.
jek_recluse [69]

Answer:

b = c/a

Step-by-step explanation:

7 0
3 years ago
the art teacher is sending home a total of 3,150 projects before winter break if each of her 150 students had the same number of
Alenkinab [10]

Answer:

21 projects each

Step-by-step explanation:

3150 ÷150

4 0
3 years ago
30% of___ is 15 ?????
tensa zangetsu [6.8K]

Answer:

15 is 30% of 50

Step-by-step explanation:

We have, 30% × x = 15

Multiplying both sides by 100 and dividing both sides by 30,

we have x = 15 × 100/30

x = 50

If you are using a calculator, simply enter 15×100÷30, which will give you the answer.

7 0
3 years ago
Other questions:
  • What is the y-intercept of <br><br> 10/-5
    6·1 answer
  • What is the domain of the given function?
    13·1 answer
  • What is a LCM.
    8·1 answer
  • Find the Slope of the Line through each pair of Points : A) ( 8,7) (5 ,-3) B ( -5 ,9) (5, 11) C ( -8 ,4 ) ( -4, -9 ) Remember Sl
    6·1 answer
  • A 8-foot tall stop sign creates a shadow that is 2 feet long. At the same time, a utility pole creates a shadow that is 9 feet l
    15·1 answer
  • Can somebody help me with this please
    6·2 answers
  • Which polynomials are in standard form?
    13·1 answer
  • Please help, no links or you're getting reported and yourass is done
    6·2 answers
  • PLEASE HELP ME GRADUATE! NO PHONY ANSWERS PLS! PLS PLS HELP ME! IM GONNA DIE! IF I DONT PASS WITH AN A
    7·2 answers
  • In the 2009 to 2010 school year in country a there were 127,004 in students from country B. This number is 24% more than the num
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!