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
Ostrovityanka [42]
2 years ago
14

2a) Solve using substitution.

Mathematics
1 answer:
Tcecarenko [31]2 years ago
8 0
First things first, write out your equation without the substitution.

2x+ 2y= 10

Now, put in the substitution.

2x+ 2• 2= 10

Combine like terms.

2x+ 4= 10

Now that your equation it simplified, you need to reverse the problem and put everything on the other side.

2x+ 4= 10
- 4 - 4
2x = 6

2x=6
— —
2 2

X= 3

So the final answer is x=3

You might be interested in
Pythagorean theorem , HELPPP
sladkih [1.3K]

Answer:

A=150

Step-by-step explanation:

1/2ab=A

1/2 15x20 = 1/2 300 = 150 = A

Hope this Helps! :)

6 0
3 years ago
Read 2 more answers
explain to make a apple pie you need 2 pounds of apples how many pounds do i need to make 20 apple pies
Andrews [41]
You do 2x20 which is basically 2x2 (4) add a zero and your answer is 40
7 0
3 years ago
Read 2 more answers
Does anyone know the answer
artcher [175]
It would be 0.81 because she got 81/100 right. Hope this helpz..
3 0
3 years ago
Three fourths of a number p less than two is five sixths of another number r plus five solve for r
maw [93]
r = -3/4p - 18/5 
(or you could put 3.6 or 3 3/5 instead of 18/5)

2 - 3/4p = 5/6r + 5 
-5                     -5
-3 - 3/4p = 5/6r
 /(5/6)       /(5/6) 
-18/5 - 3/4p = r 
-3/4p - 18/5 = r 

5 0
3 years ago
704÷46 what the answer tell me im in the
olasank [31]
15?im not sure...but I think thats right
3 0
3 years ago
Read 2 more answers
Other questions:
  • A group of 31 friends gets together to play a sport. First, people must be divided into teams. Each team has to have exactly 3 p
    11·2 answers
  • X=y-3 4x+2y=2? What is the answer
    6·1 answer
  • Bob paid $1210 for five tables and seven chairs for his company. Each table cost three times as much as each chair. If Ann broug
    5·1 answer
  • I need help quick!! Plz I’m timed and it’s almost up!!
    14·1 answer
  • Solve for k, the constant of variation, in an inverse variation problem where y=17 x=6
    10·1 answer
  • PLEASE HELP<br> Will mark BRAINLIEST
    5·1 answer
  • 3y + 1 = 4y - 6 Please solve!
    12·2 answers
  • If 7 litres of petrol cost $14.70 ,calculate the cost of 15 litres of petrol<br><br> Kindly answer
    7·1 answer
  • nick spent 3 hours writing a report. evan spent 5/8 as long as nick on the same assignment. how long did evan spent writing his
    9·2 answers
  • Which proportion would you use to solve this problem 9 is 4% of what number
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!