Question

An apple and an orange cost $1.30. Susan paid $13.40 for 12 apples and 8 oranges. Yani bought 9 oranges. How much did Yani pay for them?

Answer 1

Answer:$0.55 *9=$4.95

Step-by-step explanation:

Let be X

And be y:

Given that :x+y=$1.30

And 12x+8y=$13.40

Using elimination method :

X=$0.75:,y=$0.55

Find the price of 9oranges =$4.95

Answer 2

Answer:

$4.95

Step-by-step explanation:

Given: That an apple and an orange together cost $1.30

Further, 12 apples and 8 oranges together cost $13.40

Let the cost of an apple be $'x' and an orange be $'y'

∴ x+ y = 1.30...... (1)

&

12x + 8y = 13.40......(2)

Multiplying equation (1) by 12

12x + 12y = 15.6

Now, subtracting equation (2) from equation (1), we get

4y = 2.2

The cost of 9 oranges will be 9y

∴ 9y = 9/4*4y

⇒ 9/4*2.2

=$4.95

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