2 years ago

Solve the system by substitution. 2x=y-10 2x+7=2y The solution is ( , ).

Mathematics

1 answer:

Ugo [173]2 years ago

7 0

Answer:

Step-by-step explanation:

2x=y-10

2x+7=2y

====

2x=y-10

x = (y-10)/2

Use this in the 2nd equation:

2x+7=2y

2((y-10)/2)+7=2y

y - 10 + 7 = 2y

-y -3 = 0

-y = 3

y = -3

Use this in either equation:

2x=y-10

2x=(-3)-10

x = -(13/2) or - 6.5

(-6.5, -3)

See attached graph.

You might be interested in

Express the ratio as a fraction in simplest form 18 oz to 3 cups

valentinak56 [21]

Answer:

6/1

Step-by-step explanation:

Both 18 and 3 can be divided by 3

18 divided by 3 = 6

3 divided by 3 = 1

So the ratio is 6 : 1

So the fraction is 6/1

3 0

2 years ago

Read 2 more answers

The company that owns the telescope gives a discount of $8 off the rental fee for every rental hour after the first two hours. T

NISA [10]

Answer:

Step-by-step explanation:Please give me a brainly

4 0

2 years ago

Kathy distributes jelly beans among her friends. Alia gets 4² fewer beans than kelly who gets 3³ jelly beans. how many jelly bea

grin007 [14]

4^2= 16
3^3= 27
27-16=11 so Alia has 11 jelly beans

3 0

2 years ago

Read 2 more answers

I don't quite understand this problem: 6+√44/2 (or 6 plus the square root of 44 over 2). I know the answer is 3+√11 (3 plus the

Sonja [21]

Does 2 is included in the square root?
sq.rt (44/2) ? or (sq.rt 44)/2

5 0

2 years ago

Need help ASAP<br>i need help on the first box.<br>i will give brainiliest!!

n200080 [17]

Answer:

i think they are y and (x,y)

5 0

2 years ago