Question

solve this five do as directed​

Answer 1

1. 9m to 27cm

1m = 100cm

so 9m = 900cm

so 900cm/27 cm

= 100/3

so the ratio is 100:3

2. Convert both to same denominator (multiply accordingly)

-24/57 + -2/57

= -26/57

3. 2:3:5

Let each percentage be 2x,3x and 5x

We know that they must add up to make 100%

so 2x + 3x + 5x = 100%

10x = 100%

x = 10%

so, 2x = 20%, 3x = 30%, 5x = 50%

So 2:3:5 = 20% : 30% : 50%

4. 40% of x = 500

40x/100 = 500

40x = 50000

x = 50000/40

x = 1250

Whole quantity is 1250

5.

(i) 18/8, 27/12, 36/16, 45/20

(ii) -6/16, -9/24, -12/32, -15/40

Hope this Helped!