On Monday, Tarek travelled by train from Manchester to London. Tarek's train left Manchester at 08 35
It got to London at 1105
The train travelled at an average speed of 110 miles per hour.
On Wednesday, Gill travelled by train from Manchester to London.
Gill's train also left at 08 35 but was diverted.
The train had to travel an extra 37 miles.
The train got to London at 1135
Work out the difference between the average speed of Tarek's train and the average
speed of Gill's train.

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

correct answer:

b.(19,-2)

b. 2 and 4

step-by-step explanation:

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.