Question

http://prntscr.com/m168k4

Answer 1

@Vocaloid

Answer 2

cross multiply

Answer 3

x+3/12 and 3/2?

Answer 4

multiply diagonally

so going diagonally, you have 2*(x+3) and 3*12, set them equal to each other and you'll get your solution

Answer 5

A?

Answer 6

yes

Answer 7

http://prntscr.com/m16afl

Answer 8

uh

well there's one step where you multiply both sides by (a) to eliminate the denominator, that will give you one answer choice

from there you can factor, that's another step and another answer choice

see what two choices you can get from that

Answer 9

A and C?

Answer 10

or B

Answer 11

A+C is good

Answer 12

http://prntscr.com/m16cr3

Answer 13

hm

I believe you would just multiply both sides of the eqn by (m-2) then just solve as you normally would

Answer 14

0?

Answer 15

good

it's asking about the # of solutions, though, so in this case, 1 solution is your solution

Answer 16

ohh okay

http://prntscr.com/m16dtl

Answer 17

consider how much work gets done per minute

if you let x be the number of minutes Richard takes to mow the lawn, then Richard does 1/x of the entire job in 1 minute

same logic with Terri, except she only does 1/3 of the work that Richard does, or 1/(3x)

in 1 minute, 1/20 of the entire job gets done

so 1/x + 1/(3x) = 1/20

Answer 18

these problems are kind of a pain but if you try to think of how much work gets done per unit time it's easier to create the equation

Answer 19

Oh makes sense so it would be A

Answer 20

yes

Answer 21

http://prntscr.com/m16e2b

Answer 22

shaded area is just 6x since it's a rectangle

white area = total rectangle - shaded area, so 4*15 - 6x

they say that shaded/white = 1/4

so 6x/(4*15-6x) = 1/4 solve for x

Answer 23

doesnt x =2?

Answer 24

huh yeah guess that's not one of the choices hm.

Answer 25

there is 2.5 so...

Answer 26

I suppose that's the best course of action :/

Answer 27

okay and are these 2 correct?

http://prntscr.com/m16gos

Answer 28

I think I got something diff. for the second one

try multiplying both sides by x

Answer 29

hmmm im not getting anything different for some reason

Answer 30

1/6 - 1/x = 5/(8x)

multiply both sides by x gives us

x/6 - 1 = 5/8

try from there

Answer 31

9.75, but the only choice is with the negative sign

Answer 32

9.75 is also the same as 39/4

Answer 33

ohh okay so A