Don L. answered • 01/24/17

Tutor

5
(12)
Fifteen years teaching and tutoring basic math skills and algebra

Hi Maleeha, let b represent the burgers and l represent the lemonade. Then the equations to solve are:

3b + 2l = 14 and 2b + 4l = 12

Set up a system of equations and solve:

3b + 2l = 14

2b + 4l = 12

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for the second question, let r represent the red fish and o represent the orange fish. The equation becomes:

r + o = 31

But, o = r/2 + 1, or there are one more than half the number of red fish.

Substitute for o in the equation, r + o = 31, gives:

r + (r/2 + 1) = 31

Solve for r.

Questions?