Question

PLZ HELP Solve for x: |3x + 12| = 18
the answers are

a x = 2, x = –10
b x = 2, x = –2
c x = 10, x = –10
d x = –2, x = 10

Answer 1

A- x=2, x=-10

Answer 2

A

Answer 3

thanks can you guys help me with another?

Answer 4

sure

Answer 5

Lana makes $8 an hour plus $12 an hour for every hour of overtime. Overtime hours are any hours more than 40 hours for the week.

Part A: Create an equation that shows the amount of wages earned, W, for working x hours in a week when there is no overtime. (3 points)

Part B: Create an equation that shows the amount of wages earned, S, for working y hours of overtime. Hint: Remember to include in the equation the amount earned from working 40 hours. (3 points)

Part C: Lana earned $368 in 1 week. How many hours (regular plus overtime) did she work? (4 points)

Answer 6

anyone there?

Answer 7

Hi! :) Give me a minute to work it out and i will help

Answer 8

ok

Answer 9

So, for part A, being that there are no specified amount of hours worked that week, but the variable for hours worked is X, the equation for A is X(8)=W because X is obviously hours worked and she gets 8 dollars per hour before overtime, so X times 8 is equal to W (wages earned). Once you find out how many hours she worked you could plug that in for X.

Answer 10

sorry im confused

Answer 11

Ok, so X is the amount of hours worked, right?

Answer 12

ya

Answer 13

When there is no overtime, how much does she earn per hour?

Answer 14

8

Answer 15

Ok, so lets just say and pretend for a minute she worked 2 hours that week, how much money would she earn?

Answer 16

16$

Answer 17

and how did you get that? By multiplying 2x8 right?

Answer 18

yep

Answer 19

Okay, even if we don't know the number of hours she worked yet, we would still have to multiply some number by 8$. So, recall that X is the number of hours she worked (but we don't know that that value is)

Answer 20

so it would be w=8x?

Answer 21

So, X8=W

Answer 22

Yea!

Answer 23

ok

Answer 24

Do you understand how that comes to be tho?

Answer 25

yes

Answer 26

Why don't you give part B a try and ill check your answer

Answer 27

ok sure

Answer 28

what is the S in the problem?

Answer 29

Overtime hours worked

Answer 30

ok

Answer 31

W=8x + 12 x y?

Answer 32

Yes! That looks good!! it should have been S=8x+12y instead of W=8x+12y but that is my fault, i accidentally told you the wrong thing for S, but yes you did it well! Did you want to try C and ill check your answer?

Answer 33

sure