Mom pays $116 each week for groceries plus $28 for each fast-food dinner. she has $200 to spend each week for all the family's food. which equation can mom use to find f, the number of times fast-food can be bought, when exactly $200 is spent on food for the week?

a) 28 + 116 f = 200
b) 116 + 28 f =200
c) 28 f = 200
d) 116 f =200

this is a very good question

step-by-step explanation:

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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!