Chloe drives from town a towards town b which is 206 km apart.

(a) chloe took x minutes to drive the first 50 km at a constant speed. write down an expression, in terms of x, for her speed in km/h, for the first 50 km.

it took chloe 2 hours to drive the rest of the distance.

(b) chloe's speed for the first part of the journey is 12 km/h faster than for the second part.

write down an equation in x to represent the information above and solve the equation to find the value of x.

(c) hence, calculate chloe's average speed, in km/h, for the whole journey. correct your answer to 2 decimal places.

ce pula mea vrei ma

step-by-step explanation:

gayule

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.

really really sorry if i'm

-12 -5(x + 4) = 3x

-12 - 5x - 20 = 3x

-12 - 20 - 5x = 3x

-32 - 5x = 3x

    + 5x   + 5x

-32 = 8x

8         8

- 4= x

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.