Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).

Janice wants to create a test containing 20 questions worth 50 points. If Janice creates questions worth either two points or four points, she can include___two-point questions and___four-point questions.

15 2-point and 5 4-point

Step-by-step explanation:

x + y = 20

2x + 4y = 50

x = 20 - y

x + 2y = 25

20 - y + 2y = 25

y = 5

x = 15

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.