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
worty [1.4K]
3 years ago
13

Solve using the elimination method. 5r-2s=21 & 2r+5s=20

Mathematics
1 answer:
cestrela7 [59]3 years ago
5 0
I hope this is correct. I solved it using the addition elimination method. The answer is s= 2, and r= 5. I hope that was helpful.
You might be interested in
A bag contains 45 marbles of various colours. Lena draws 48 times, each time replacing the marble before drawing again. She gets
sergiy2304 [10]
I think the answer is c im not sure sorry
5 0
3 years ago
Read 2 more answers
Tu went to the movies. he bought 2 tickets for $ 9.50 each, popcorn for $ 5.00, and 2 drinks for $ 4.25 each. He give the clerk
alexandr1967 [171]

Answer:

Option A -  $ 40.00 - $9.50 - $4.25 - $5.00                          

Step-by-step explanation:

Given : Tu went to the movies. he bought 2 tickets for $ 9.50 each, popcorn for $ 5.00, and 2 drinks for $ 4.25 each. He give the clerk two $ 20.00 bills.

To find : Which expression can not be used to find the amount of changes Tu got?

Solution :

He give the clerk two $ 20.00 bills i.e. 2\times 20 or 40

He bought 2 tickets for $ 9.50 each i.e. -(2\times 9.50) or -9.50-9.50

Popcorn for $ 5.00 i.e. -5

2 drinks for $ 4.25 each i.e. -(2\times 4.25) or -4.35-4.25

The expression can not be used to find the amount of changes Tu got is

' $ 40.00 - $9.50 - $4.25 - $5.00'.

Therefore, option A is correct.

3 0
3 years ago
Solve each equation.<br> 6x2 + 1 = 13
ahrayia [7]
40,681.
40,681. 40,681.
40,681.
8 0
3 years ago
Write all the numbers that will round to 330
grandymaker [24]

Answer:

229.6 229.7 229.8 229.9 330.1 330.2 330.3 330.4

Step-by-step explanation:

idk

8 0
3 years ago
Determine the value of x when y= 14, if y=7 when x=8
Nezavi [6.7K]

Answer:

x=16

Step-by-step explanation:

since y=7 when x=8 and your trying to find what x is when y=14. Your really just taking the y value which is 7 then multiplying it by 2 which is 14. then since you multiplied the first y value by 2 you then just multiply the 8 by 2 and that is 16.

7 0
3 years ago
Other questions:
  • Red box weighs 50 pounds, blue box weighs 60 pounds, and yellow box weighs 115 pounds. What is the average weight in pounds?
    15·2 answers
  • If the parent function is y = 4x, which is the function of the graph?
    10·1 answer
  • Select the two values of x that are roots of this equation.<br> 2x+11x+15= 0
    14·1 answer
  • A demand _ is a graphic represantion of the law of demand
    5·2 answers
  • Peter is trying to buy fencing for the perimeter of his garden. His garden is in the shape of a rectangle with a length of 2(x+6
    13·1 answer
  • Find the dimensions of the rectangle with area 256 square inches that has minimum perimeter, and then find the minimum perimeter
    12·1 answer
  • What is the volume for a cylinder with a diameter of 10 m and a height of 5 m? use 3.14 for pi
    9·1 answer
  • Solve please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!<br> |−9.8|<br> |11 2/ 3|<br> |−2 6/ 7|
    5·1 answer
  • Select the choice that translates the following verbal phrase correctly to algebra:
    12·1 answer
  • Pleaseeeee hellppppdosbshsb I NEED TO KNOW!!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!