Find the value of y if the image below is a kite 10 7 12 5

y=7

Step-by-step explanation:

We know the tops 2 parts of the kite have to be equal

x+3 = 15

Subtract 3 from each side

x+3-3 =15-3

x=12

We also know the bottoms have to be equal

3y-1 =2x-4

Substitute the value for x

3y-1 =2(12) -4

3y-1 =24-4

3y-1 =20

Add 1 to each side

3y-1+1 =20+1

3y = 21

Divide each side by 3

3y/3 = 21/3

y = 7

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.