Question

Simplify 6(2r − 5) + 2r

a 4r − 30

b 4r + 30

c 14 r − 30

d 12 r − 30

Answer 1

6(2r-5) +2r
12r-30+2r
14r-30

Answer 2

okay thank you... can you help me with this one? Your Math class has 32 students. You would like to treat the class to cookies. You would like each person to have 5 cookies. Which expression would be a quick way to figure out how many cookies you would need to bake?

a 5(32 + 2)

b 5(30 + 2)

c 5(32 − 2)

d 5(30 − 2)

Answer 3

is it b?

Answer 4

hmm.
to me the easiest way to do this is 32 x 5. which is 160.
i also thought it was b but when i simplified i get 152.

Answer 5

Can I help here?

Answer 6

yeah go ahead.

Answer 7

what are you guys stuck on?

Answer 8

b is correct.
5(30 + 2) = 5(32) = 160

Answer 9

OMG IM SO STUPID.

Answer 10

to check to see take the orgainal problem and times the 32 to 5 and see if you get 160

Answer 11

so yes b is correct

Answer 12

You can also do it using the distributive property:
5(30 + 2) = 5(30) + 5(2) = 150 + 10 = 160

Answer 13

that is the other way too.. :)

Answer 14

thanks guys appreciate it

Answer 15

not a problem and have a good night or day wherever you are..

Answer 16

night :P

Answer 17

Hey NY NY I am now your fan :)

Answer 18

me too :)