Question

Kim uses decals to decorate 5 cars and 2 bikes. she uses 2/3 of the decals on the cars and 2/5 of the remaining decals on the bikes. She has 6 decals left. How many decals does she use on each car?

2/3 of decals on 5 cars
2/5 of remaining on 2 bikes.
6 left over

Answer 1

Kim has X decals.
2x/3 on 5 cars.
Remaining = x - 2x/3 = 1x/3.

2/5 * 1x/3 = 2x/15 decals on 2 bikes.
Remaining = 6.

2x/3 + 2x/15 + 6 = X.
10x + 2x + 90 = 15x.
15x-12x = 90.
3x = 90.
X = 30 = Total decals.

2x/3 = 60/3 = 20 Decals on 5 cars.
20decals/5cars = 4 decals/car.

Answer 2

You need to show this in Fraction and Decimal form

Answer 3

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