Question

You buy 5 pounds of tomatoes at 1.29 per pound and some peppers at 3.39 per pound to make salsa.Write an expression for the total cost of the ingredients then find the total cost of 5 pounds of tomatoes and 2 pounds of peppers

Answer 1

The cost per pound stays the same, but the number of pounds is variable, so assign the number of pound of tomatoes a variable and the number of pounds of peppers a variable, say, t and p.

Answer 2

Then to find the total cost, you must multiply the cost per pound by the number of pounds for each item.

1.29t + 3.39p

Answer 3

ok whats the expression for the total cost of ingredients

Answer 4

For the cost of 5 pounds of tomatoes and 2 pounds of peppers, just substitute those values in for t and p.

1.29(5) + 3.39(2)

Answer 5

The expression is 1.29t + 3.39p.