Question

Gabriel is at the grocery store, and wants to figure out his total cost before he gets to the register. He bought 2.5 pounds of apples that are x dollars a pound and 2 bags of lettuce for y dollars each. Gabriel remembers he has a coupon for $2 off his bill.

Gabriel has $30 to pay for the groceries. What simplified expression would represent the amount of change he should receive?

Answer 1

okay

Answer 2

can u tell me the answer

Answer 3

i can guide u to the right answer but i cant give u the direct answer

Answer 4

ok u may guide me to it

Answer 5

lol okay

Answer 6

lol i'm ready whenever u is

Answer 7

so what i did to solve this is i put 2.5 as x and 2 as y and then that how i got my answer

Answer 8

i did the same

Answer 9

nut i still dont get it

Answer 10

i still dont get it

Answer 11

28 – 2.5x – 2y
this what i think the answer is

Answer 12

30-(2.5x+2y-2)=32-2.5x-2y

Answer 13

i can see where u went wrong at

Answer 14

can u PLZZ give me the answer

Answer 15

i just did

Answer 16

i glot one more problem

Answer 17

okay

Answer 18

Gabriel used the expression 2.5x + 2y – 2 to represent his total cost, and 28 – 2.5x – 2y to represent the amount of change he should receive from $30. What was Gabriel’s error?

Answer 19

that is my question

Answer 20

the entire expression should be subtracted from 30. To subtract the quantity, distribute the negative sign, which changes the signs on the terms. So, the –2 changes to positive and gets added to 30 instead of subtracted from it.

Answer 21

thank you

Answer 22

you're welcome

Answer 23

that was the correct answer

Answer 24

mhmm

Answer 25

A student simplifies (6b + 4r) – (2b + r) and says that the result is 4b + 5r. Explain the error and describe the correct steps to simplify the expression.

Answer 26

thats another question

Answer 27

okay

Answer 28

im waiting on you

Answer 29

Actually, its not 4b + 5r its 4b +3r because look

step 1. 6b + 4r - (2b + r)
step 2. 6b + 4r - 2b - r
step 3. (6b - 26) + (4r - r)
step 4. 4b + 3r
So the answer is actually 4b + 3r

Answer 30

thanks i got one more hold up

Answer 31

okay