Tasha ordered soup and salad for lunch. If Tasha ordered 10 ounces of soup for lunch and the total cost was 3.30 dollars, how many ounces of salad did Tasha order?
Accepted Solution
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Answer:Tasha ordered 9 ounces of saladStep-by-step explanation:The complete question isTasha ordered soup and salad for lunch. The soup cost 15 cents per ounce, and the salad cost 20 cents per ounce. If Tasha ordered 10 ounces of soup for lunch and the total cost was $3.30, how many ounces of salad didTasha order?Letx -----> the ounces of soup orderedy -----> the ounces of salad orderedwe know thatThe ounces of soup ordered multiplied by their cost plus the ounces of salad ordered multiplied by their cost must be equal to $3.30so[tex]0.15x+0.20y=3.30[/tex] -----> equation A[tex]x=10\ oz[/tex]substitute the value of x in the equation A and solve for y[tex]0.15(10)+0.20y=3.30[/tex][tex]1.50+0.20y=3.30[/tex]Subtract 1.50 both sides[tex]0.20y=3.30-1.50[/tex][tex]0.20y=1.80[/tex]Divide by 0.20 both sides[tex]y=9\ oz[/tex]thereforeTasha ordered 9 ounces of salad