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
Fynjy0 [20]
2 years ago
11

Solve the system of equations 2r + 2s = 50 and 2r – s = 17.

Mathematics
1 answer:
WARRIOR [948]2 years ago
6 0
Eq1) 2r+2s=50
eq2) 2r-s=17

solve for s in equation2 (eq2)

-s=17-2r
s=-17+2r
Substitute s into equation1 (eq1)
2r+2(-17+2r)=50
2r-34+4r=50
6r-34=50
6r=50+34
6r=84
r=14
Substitute into either equation and solve for s
2(14)-s=17
28-s=17
-s=17-28
-s=-11
s=11
You might be interested in
If there are 15 pistachios for every 5 bowls, how many pistachios are in 4 bowls
Pani-rosa [81]

Answer:

12 pistachios

Step-by-step explanation:

We need to find the unit rate. So we divide 5 from 15.

15/5=3

So we know that 1 bowl has 3 pistachios(which I think needs more).

Now we need to find how many pistachios are in 4 bowls. Which means we multiply 4 and 3.

4x3=12

So there are 12 pistachios in 4 bowls.

---

hope it helps

7 0
2 years ago
Read 2 more answers
How do find the volume of l blocks
kow [346]
For number 1)

you must first split the figure, so subtract the 8 mm from 12 mm to find the width.... = 4mm

so you use the numbers 10 x 2 x 4 = 80 mm

and 2 x 8 x 3 = 48 mm


80 mm + 48 mm = volume of the figure
5 0
3 years ago
7.
Amanda [17]

Answer:

D

Step-by-step explanation:

8 0
3 years ago
Aflati un numar natural care impartit la 17 da catul 23 si restul 11.
Anit [1.1K]
I cannot understand what you are saying 
5 0
3 years ago
Help me with my math
aleksley [76]
No nonononononononono
3 0
3 years ago
Other questions:
  • PLEASE HELP NOW I WILL MARK BRAINLYST IF CORRECT What property of equality is demonstrated below? 2 + (5 + 6) = (2 + 5) + 6
    15·1 answer
  • WILL GIVE BRAINLIEST AND 5 RATING IF HELP!
    7·1 answer
  • What's 2/3×2/3 please explain
    9·2 answers
  • Anybody know this? need help
    15·1 answer
  • Simplify 4x+3y please
    13·1 answer
  • Sloutions to y=x-4<br> (6,3)<br> (4,0)<br> (3,-1)<br> (2,-4)
    7·2 answers
  • A pentagon with exterior angles is shown. The angles are 57 degrees, 108 degrees, 51 degrees, 60 degrees, and (x + 12) degrees.
    11·1 answer
  • Isabella invested $1300 in an account that pays 4.5% compounded annually. Assuming no deposits or withdrawals are made , find ho
    5·1 answer
  • Shiva read 1/2 of a book in the morning, and she read some more at night. By the end of the day, she still had 1/3 of the book l
    14·2 answers
  • A building casts a shadow that is 55 feet long. At the same time, a woman standing nearby who is 5 feet 3 inches tall casts a sh
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!