Answers

2015-04-26T15:51:55+08:00

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
The lady in front bought 5 apples and 4 oranges.
Lets represent:
x=cost per apple
y=cost per orange

An apple and an orange cost 45 so the equation follows as:
x+y=P 45

The lady bought 5 apples and 4 oranges for P 205
5x+4y=P 205

Now lets use substitution to make the equation easier:
x+y= P 45
x= P 45-y

5x+4y=P 205
Substitute the value of x
5(P 45-y)+4y= P 205
Distribute
P 225-5y+4y= P 205
Add like terms
P 225-y=P 205
Subtract both sides by P 225
-y=-P 20
Multiply both sides by -1
y= P 20

Substitute the value of an orange:
x+y= P 45
x+ P 20= P 45
Subtract both sides by P 20
x= P 25

The value of an apple is P 25 and an orange is P 20. Hope this helps =)

0