Question

This is not for a test! Priya is buying raisins and almond to make trail mix. Almonds cost 5.20 per pound and raisians cost 2.75 per ponund. Priya spent 11.70 buying almond and raisians. The relationship between pounds of almond a, pounds of raisian r, and the total cost is represented by the equation 5.20a + 2.75r = 11.70 How many pounds of raisans did priya buy if she bought .64 of almonds?

Answer 1

5.20a + 2.75r = 11.70

pounds of raisin = r

pounds of almond = a

replace a by 0.64 and solve for r

5.20 (0.64) +2.75 r = 11.70

3.328 + 2.75r = 11.70

2.75r = 11.70-3.328

2.75r = 8.372

r= 8.372 /2.75

r= 3.045 pounds