Two pizzas and four sandwhiches cost $62. Four pizzas and ten sandwiches cost $140. how much does each pizza and sandwhich cost?

Pizzas are $15

Sandwiches are $8

Step-by-step explanation:

Write a system of equations

Pizza = x

Sandwiches = y

2x + 4y = 62

4x + 10y = 140

Isolate a variable in one of the equations

2x = 62 - 4y

x = 31 - 2y

Plug isolated x value into other equation

4(31-2y) +10y = 140

124 - 8y + 10y = 140

Simplify

2y = 16

y = 8

Plug y value into equation to solve for x

2x + 4(8) = 62

2x + 32 = 62

2x = 30

x = 15

After studying children who watched  hours of television after school, one

researcher found that watching  several hours of television every  day was often linked to childhood  obesity and lack of physical activity.  Childhood obesity is a "complicated  and sociopolitical issue," and parents,  teachers, community leaders, and  governmental leaders can work  together to encourage youth to  make healthier decisions.  As childhood obesity rates continue  to be rise, scientists believe  that one important factor in  making a difference will be  “educating families, especially  in poverty-stricken areas”

(James 5).