Question

Marat has $16 to buy doughnuts for Saturday morning breakfast. Specialty doughnuts cost $2 each and glazed doughnuts cost $1 each. Write an inequality to describe the situation. Then give two possible combinations of specialty and glazed doughnuts that Marat can buy. I REALLY need help with this problem!!

Answer 1

2s+1g=16 she can buy 3 specialty doughnuts and 10 glazed doughnut OR 4 specialty doughnuts and 8 glazed doughnuts.

Answer 2

2 x + 1y ≤16

Combinations:

5 specialty donuts and 6 glazed donuts

6 specialty donuts and 4 glazed donuts

Explanation:

Hi, to answer this question we have to write an inequality with the information given:

We have to multiply the cost of each doughnut by a variable; the variables will represent the number of doughnuts bought in each case.

The sum of both products must be less or equal to 16 (money available)

Mathematically speaking:

2 x + 1y ≤16

Where

x = number of specialty donuts

y = number of glazed donuts

Two possible combinations:

5 specialty donuts and 6 glazed donuts

2 (5) + 1 (6) =10+6 =16

16=16

6 specialty donuts and 4 glazed donuts

2(6)+ 1(4) = 12 +4 =16