Question

***WILL GIVE MEDAL TO WHOEVER HELPS***
Question:
Sherri has 23 pieces of jewelry to sell. She sells the bracelets for $2 and the necklaces for $3, and earns a total of $55. If the bracelets are represented by x and the necklaces are represented by y, which of the following systems of equations can be used to calculate the number of bracelets and necklaces sold?

Answer choices:
x + y = 23, 3x + 2y = 55
x + y = 55, 3x + 2y = 23
x + y = 23, 2x + 3y = 55
x + y = 55, 2x + 3y = 23

Answer 1

x = bracelets
y = necklaces

there are 23 of them in total (necklaces + bracelets)
x + y = 23

bracelets are $2 each and necklaces are $3 each...totaling $55
2x + 3y = 55

Answer 2

texas thanks

Answer 3

sure thing :)

Answer 4

can u help with another

Answer 5

possibly...what ya got ??

Answer 6

i got the hang of it but not quite sure

Answer 7

Solve the following system of equations by substitution and select the correct answer below:

6x − 4y = 36
2x − 8y = 32

x = 4, y = 3
x = 4, y = −3
x = −4, y = 3
x = −4, y = −3

Answer 8

3rd choice was my answer

Answer 9

2x - 8y = 32 --- reduce by dividing by 2
x - 4y = 16
x = 4y + 16

now sub 4y + 16 in for x back into the other equation
6x - 4y = 36...this can be reduced as well
3x - 2y = 18

now sub
3(4y + 16) - 2y = 18
12y + 48 - 2y = 18
subtract 48
12y - 2y = 18 - 48
10y = - 30
y = -3

x = 4y + 16
x = 4(-3) + 16
x = -12 + 16
x = 4

check...
x = 4y + 16
4 = 4(-3) + 16
4 = -12 + 16
4 = 4 (correct)

answer is (4,-3)

Answer 10

thank u now i understand it :)

Answer 11

just need this last one and im done youve been such a good help

Answer 12

Is this right?

What are the solutions to the following system of equations? Select the correct answer below.

y = x2 − 4x + 8
4x + y = 12

(2, 20) and (−2, 4)
(2, 4) and (−2, 20)
(−2, 2) and (4, 20)
(20, −2) and (4, 2) <------- my answer

Answer 13

4x + y = 12
y = -4x + 12

x^2 - 4x + 8= -4x + 12
x^2 + 8 = 12
x^2 = 4
x = sq rt 4 = 2 and -2

y = -4x + 12
y = -4 (+-) 2 + 12

y = -4 (+2) + 12
y = -8 + 12
y = 4

y = -4 (-2) + 12
y = 8 + 12
y = 20

so y = 4 and 20

so your answers are correct

Answer 14

thank u texas
appreciate all the help

Answer 15

sorry it took so long....I hope I helped

Answer 16

helped a lot