Sophia started with 25 pieces of gum and gave away x pieces. maria started with 75 pieces of gum and gave away twice as many. how many pieces of gum did sophie gave away if they had the same number of pieces of gum left

x = 50

Step-by-step explanation:

Pieces of gum given by Sophia = x

Pieces of gum left with Sophia after giving x pieces = 25 - x

Pieces of gum given by Maria = 2 × Gums given by Sophia = 2x

Pieces of gum left with Maria after giving 2x pieces = 75 - 2x

Pieces of gum left with Sophia = Pieces of gum left with Maria

25 - x = 75 - 2x

2x - x = 75 - 25

x = 50

Pieces of gum left with Sophia is 50.

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

i hope this is what you were looking for.

see attached graph