Elle ordered some large pizzas and some medium pizzas for a party. In all, she ordered 18 pizzas. Large pizzas cost $14, and med

Question

3 years ago

12

Elle ordered some large pizzas and some medium pizzas for a party. In all, she ordered 18 pizzas. Large pizzas cost $14, and med

ium pizzas cost $10. In all, she spent $204. Determine if each equation is a part of the system of equations that can be used to find the number of each type of pizza that was ordered. The variable x represents the number of large pizzas, and y represents the number of medium pizzas.

Mathematics

1 answer:

777dan777 [17] · Answer 1 · 2022-06-17T19:16:19+03:00

777dan777 [17]3 years ago

4 0

L+m=18, l=18-m

14l+10m=204 using l found above in this we get:

14(18-m)+10m=204

252-14m+10m=204

252-4m=204

-4m=-48

m=12, since l=18-m

l=6

So Elle ordered 6 large and 12 medium pizzas.