There were 100 pizzas sold at Romeo's Pizzeria on Tuesday. A large pizza costs $16 and a small pizza costs $11. If $1,550 worth of pizzas were sold in all, how many small pizzas were sold?
1 answer:
Answer:
Step-by-step explanation:
Let number of large pizzas be l and number of small be s.
<u>Then we have equations:</u>
l + s = 100 16l + 11s = 1550 <u>From the first equation, we get l = 100 - s and substitute in the second equation:</u>
16(100 - s) + 11s = 1550 1600 - 16s + 11s = 1550 5s = 1600 - 1550 5s = 50 s = 10 Number of small pizzas is 10
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