Eco algebra 1.
which of the following equations is an example of the commutative property?
a. (3)(6+10) = 18 + 30
b. 18 + 30 = 30 + 18
c. (3)(6) + (3)(10) = 3(16)
d. 48 = 48
let the equation of a line be described by equation a:
10y - 5x = 40
what are the y-intercept and slope of the line?
a. the y-intercept is 40, and the slope is 10
b. the y-intercept is 10, and the slope is 40
c. the y-intercept is 40, and the slope is 2
d. the y-intercept is 4, and the slope is 0.5

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.

it should be a.

hope it