Question

I have finished an algebra review, and I was wondering if anyone would be willing to check my answers? (:

Answer 1

Hmm I can :D

Answer 2

1. Solve, using linear combination.

3x – y = 4
2x + y = 6

A.
(–1, –7)

B.
(3, 0)

C.
(0, –4)

D.
(2, 2)

I believe that this one is D.

Answer 3

lol!!

Answer 4

2. Use the graph to state the solution for the system.

x + 2y = 4 (line a)
3x – 2y = 4 (line b)


A.
(–2, –1)

B.
(2, 1)

C.
(–2, 1)

D.
(2, –1)

I think that that number two is B.

Answer 5

3. Solve this system of equations using any method.

2x – y = 5
3x + 2y = 4

A.
(5, 5)

B.
(0, 2)

C.
(2, –1)

D.
(–1, –7)

I think that this one is C

Answer 6

Which is a system of equations to solve the following problem?
Let c be the number of child tickets and a be the number of adult tickets.
Each child ticket for a ride costs $2, while each adult ticket costs $6. If the ride collected a total of $148, and 38 tickets were sold, how many of each type of ticket were sold?

Here is my work:
2c+6a=148
a+c=38

Answer 7

Each child ticket for a ride costs $2, while each adult ticket costs $6. If the ride collected a total of $148, and 38 tickets were sold, how many of each type of ticket were sold?

A.
19 child and 19 adult

B.
14 child and 20 adult

C.
148 adult and 38 child

D.
20 child and 18 adult

This one is B

Answer 8

1st 2 look good

Answer 9

In a recent golf match, Becky’s score was 5 less than Cathy’s score. Their combined scores totaled 185. Which of the following pairs of equations can be used to determine their scores? Let b represent Becky’s score and c represent Cathy’s score.

A.
b + c = 185
b – c = 5

B.
c = b – 5
b + c = 185

C.
b = c – 5
b + c = 185

D.
b + c = 5
185 + b = c

This one is A

Answer 10

Solve the following system of equations.

d + e = 6
d – e = 4

I don't think that there is a solution to this equation.

Answer 11

look back at the ticket problem you said was b

Answer 12

Which is the graph of the system of equations?

2x + 3y = 12
4x + y = 8

I believe that this is the correct graph:

Answer 13

d + e = 6 & d - e = 4.... theres a solution for tht

Answer 14

What would be the solution then?

Answer 15

d = 5 & e = 1

Answer 16

add them straight down

Answer 17

Solve the following system of equations by linear combination:

3x + 2y = 7
5x – 4y = 19

I got (3,-1)

Answer 18

Those are all of the questions, and all of my answers. Can you guys please tell me how I did, if you know? :)

Answer 19

last one looks good

Answer 20

(3, -1) is correct...

Answer 21

I get (20,18) for that ticket problem above

Answer 22

question on golf match...ur answer is wrong...:(

Answer 23

What about the others? :)

Answer 24

Ticket one answer is also wrong:(

Answer 25

other r correct except the two mentiond above

Answer 26

Okay thank you!

Answer 27

u r most welcome....anytime ;)