Kevin is tiling his bathroom. The floor is 6-by-5 feet, minus a 2-by-2.5-feet vanity. The tiles he likes are 1-by-1 foot. If he plans to buy 10 percent extra for waste, how many tiles will he need?

He plans to buy 28 tiles.

Step-by-step explanation:

Given: Dimensions of floor = 6-by-5 feet

Since area of rectangle = length x width

Then , area of floor = 6 x 5 square feet = 30 square feet

Dimension for vanity  2-by-2.5-feet , area of vanity = 2 x 2.5 sq. feet = 5 sq. feet

Area of floor for tiling = 30 square feet -  5 sq. feet

= 25 square feet

Area of 1 tile = 1 x 1 = 1 square  feet

Number of tiles required to cover 25 sq. feet =  25÷1=25

10 percent extra = 10% of 25+25 = 2.5+25=27.5 ≈28

Hence, he plans to buy 28 tiles.

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point

where's the diagram?

step-by-step explanation: