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
pentagon [3]
3 years ago
13

Help me simplify 7x-(x-y) and 9a-(2b-a)

Mathematics
2 answers:
jonny [76]3 years ago
8 0
7x-(x-y) = 7x - x + y = 6x + y

9a-(2b-a) = 9a+a-2b = 10a-2b

hope it helped
frozen [14]3 years ago
6 0
Since there's a - next to the bracket, you minus everything inside of it, if there's a minus in the bracket, it turns to +
7x-(x-y) = 7x-x+y = 6x+y
9a-(2b-a) = 9a-2b+a = 10a-2b
You might be interested in
An airplane travels 800 miles with the wind in the same of time it takes to travel 650 miles against the wind. What is the speed
SOVA2 [1]

Answer:

90 mph

Step-by-step explanation:

Against wind DATA:

distance = 600 miles ; time = 5 hrs. ; rate = 600/5 = 120 mph

With wind DATA:

distance = 600 miles ; time = 2 hrs ; rate = 600/2 = 300 mph

Equations:

p + w = 300

p - w = 120

2p = 420

p = 210 mph (speed of the plane in still air)

Since p+w = 300, w = 300-210 = 90 mph (speed of the wind)

3 0
3 years ago
Explain the process for determining sales tax and total purchase price.
Ainat [17]

Answer:

in most states sales tax is .07 cents for every dollar you spend. for food it is different

Step-by-step explanation:

7 0
3 years ago
If you were 2 years old in 2011 how old would you be in 2020?
Roman55 [17]

Answer:

11 years

Step-by-step explanation:

2 years that you were in 2011

2020-2011= 9

2+9=11

also meaning they were born in 2009

2020-2009 also equals 11

this prolly doesnt make sense but hope it helps :) <3

4 0
2 years ago
Read 2 more answers
Solve for x y=c(x+b)
sergeinik [125]

Step-by-step explanation: To solve for x in this literal equation, I would first distribute the C through the parentheses to get y = cx + cb.

Now subtract cb from both sides to get y - cb = cx.

Finally, divide both sides by c to get y - cb / c = x.

5 0
2 years ago
50 point question for this geometry test answer
aniked [119]

Answer:

d

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Create a table for x and y<br> y= -2/3 +7<br> the function of the is domain -12, -6, 3,15
    12·1 answer
  • What is the vertex of the absolute value function defined by ƒ(x) = |x + 2| + 4?
    15·2 answers
  • How many hours and minutes between 2:45 and 4:00
    5·2 answers
  • Tacoma's population in 2000 was about 200 thousand, and had been growing by about 9% each year. a. Write a recursive formula for
    8·2 answers
  • There are 600 cars in the parking lot. The ratio of red cars to white cars is 3:5. How many red cars and how many white cars are
    15·1 answer
  • A lottery has a prize valued at $2400 and k tickets are sold at $2.00 each. Express the expected value of a ticket as function o
    12·2 answers
  • Hector had 30 minutes to do a three-problem quiz. He spent 11 3 4 minutes on question A and 6 1 2 minutes on question B. How muc
    8·1 answer
  • A small car has a tire with a 13-inch diameter. A truck has a tire with a 29-inch diameter. How much farther than the car does t
    13·1 answer
  • 38. Jean owes her parents $90, to be paid in 5 equal installments. How much is each<br> installment?
    12·2 answers
  • A circle's radius is 8 inches.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!