Question

rewrite 7(40=2) as the sum of two products

Answer 1

Hint:

a(b+c) = a*b + a*c

Answer 2

Ex:

a = 3, b = 4 and c = 5

a(b+c) = a*b + a*c

3(4+5) = 3*4 + 3*5

Answer 3

i meant 7(40+2)

Answer 4

i figured that, does my example help?

Answer 5

kind of but im still a little confused

Answer 6

You take the outside number (in the example, it's 3) and you multiply it by EVERY number inside. Then you add the products

Answer 7

ohh now i get it. thanks for the help.

Answer 8

you're welcome

Answer 9

i got another question

Answer 10

go for it

Answer 11

what is the multiplicative inverse of -1/9

Answer 12

What number multiplies with what you have there will result in an answer of 1?

Answer 13

(Some number) * (-1/9) = 1

What is the "some number" ?

Answer 14

isn't 9?

Answer 15

close

Answer 16

or - 1

Answer 17

9 times -1/9 = -1

so you're close

Answer 18

it's not -1

Answer 19

well you're a big help my teacher wont even help me

Answer 20

that's just messed up...

Answer 21

you want some number to multiply with -1/9 to give you positive 1...not negative 1

So keep looking

Answer 22

it s just 9 right?

Answer 23

not negative

Answer 24

no, it has to be negative since the two negatives will cancel

Answer 25

-9 times -1/9 = +1

Answer 26

ohh okay

Answer 27

7[6+5+(-6)] = 7[6+(-6)+5] should that be distributive or associative property or communtive or identity property?

Answer 28

what change is occurring