Question

simultaneous equations

Answer 1

Step-by-step explanation:

Let cost of bow be x

cost of arrow be y

Equation 1 total cost = x+y =22

Equation 2 difference = x-y =19

Adding these equations we get

2x = 41

x= 41/2

X= 20.5

Using value of x in equation 1

We get

x+y = 22

20.5 +y =22

y =22-20.5

y=1.5

A bow cost = £20.5

A arrow cost = £ 1.5