Question

arbara used the distributive property to write an expression that is equivalent to 7 d + 63. Her work is shown below.

The greatest common factor is 7 so 7 d + 63 = 7 (d + 63)

What was Barbara’s error?

A Barbara wrote (d + 63) instead of 63 d).
B Barbara wrote (d + 63) instead of (d + 9).
C Barbara wrote (d + 63) instead of (d + 56).
D Barbara wrote (d + 63) instead of (10 d).

Answer 1

help?

Answer 2

What happens when you distribute 7(d + 63)?

Answer 3

uh

Answer 4

So which one do you think is a wrong awnser

Answer 5

C

Answer 6

ok good job anything else

Answer 7

sure

Answer 8

No i think its b

Answer 9

so C was the right answer

Answer 10

B-Barbara wrote (d+63) Instead of (d+9)

Step-by-step explanation:

Since the greatest common factor is 7 it simply mean 7 is divisor of the expression 7d +63 and not just a divisor of 7d.

=(7d+63)/7

= (d + 9)

Expression 7(d+63) = (7*d + 7*63) = 7d + 441 which is not equal to 7d +63

So Barbara should have writen 7d +63 = 7(d+9) instead.

Answer 11

ok
ok

Answer 12

Can you give me a medal

Answer 13

ok ok the answer was

Answer 14

??

Answer 15

medal?

Answer 16

for u

Answer 17

yeah

Answer 18

no

Answer 19

naw im jp

Answer 20

that is agenst the rules to ask for medals

Answer 21

it is

Answer 22

OOF

Answer 23

i could report you for that

Answer 24

look what my screen said

Answer 25

Ok sorry

Answer 26

Wow I think it was @Timmyspu who did it

Answer 27

He's not a moderator

Answer 28

no i did not do that

Answer 29

Who did then?

Answer 30

idk???