Question

1: If i was asked to think of a number and multiply it by 2 i could write this algebraically as 2x

write the following algebraically,using x as your unknown


i think of a number,multiply it by 5 and subtract 3 from the result


please answer this



2. If i was asked to think of a number and multiply it by 2 i could write this algebraically as 2x

write the following algebraically,using x as your unknown


i think of a number, multiply it by 2,subtract 3 and multiply the result by 4



3. If i was asked to think of a number and multiply it by 2 i could write this algebraically as 2x

write the following algebraically,using x as your unknown


i think of a number multiply it by itself and then add 6 to the result


4. If i was asked to think of a number and multiply it by 2 i could write this algebraically as 2x

write the following algebraically,using x as your unknown


i think of a number, multiply it by 3, add 4 and square the result


5. Wayne charges the following for repairing washing machines:

£28 call-out charge + 16 for each half-hour he spends on the repair


what will the total cost be for a repair which takes one and a half hours?


please answer all of these :(

Answer 1

Answer:

1.5x-3

2.2x-3×4

3. let the number be x so x multiplyed by x = 2x

then added to six gives you

2x + 6

4. unknown number =x

then 3 multiplyed =3x

then add 4=3x +4

then the square equals to

3=9

x=2x

4=16

11x+16

sorry the fourth one could be wrong