Question

can someone check my answers?

Answer 1

@dude

Answer 2

That is right

Answer 3

@dude

Answer 4

Right

Answer 5

@Vocaloid

Answer 6

hm

not quite

notice how the last statement replaced "m<A" with "m<C" since A and C had been stated to be equal

Answer 7

oh, so it's transistive?

Answer 8

oh..

Answer 9

same logic as last time

since x = z you can replace "x" with "z" to get y = z/7

Answer 10

another way to say "replace" is ~substitute~

making this the substitution property

Answer 11

hm, not quite

multiplicative would be more like, multiplying both sides of the equation by the same thing, like

A = B
A*C = B*C

Answer 12

generally when you see something being ~distributed~ across parentheses like

A(B+C) = A*B + A*C this is the ~distributive property~

Answer 13

good

Answer 14

hm. not quite. notice how h is being multiplied to b, what operation could we do to get "h" by itself?

Answer 15

division?

Answer 16

good, you would divide bh by b to get h

so division property of equality is a better sol'n

Answer 17

hm not quite

the statements are in the format

A = B
B = C

then A = C

which property is this?

Answer 18

not quite

what sort of operation had to be done to get from

(y-4)/3
to
y - 4?

notice how the division has been cancelled out

Answer 19

so it's division?

Answer 20

not quite

what mathematical operation would "undo" division?

Answer 21

multiplication.

Answer 22

good so multiplication property = your sol'n

Answer 23

thank you.