Divide the following quantities in the given ratios. a N2800 in the ratio 1:3
b 800 mm in the ratio 3:2
C 88 bananas in the ratio 6:5

see explanation

Step-by-step explanation:

(a)

sum the parts of the ratio, 1 + 3 = 4 parts

Divide the amount by 4 to find the value of 1 part of the ratio

2800 ÷ 4 = 700 , then

3 parts = 3 × 700 = 2100

2800 in the ratio 1 : 3 = 700 : 2100

(b)

3 + 2 = 5 parts , then

800 ÷ 5 = 160 ← value of 1 part of the ratio , then

3 parts = 3 × 160 = 480

2 parts = 2 × 160 = 320

800 mm in the ratio 3 : 2 = 480 mm : 320 mm

(c)

6 + 5 = 11 parts , then

88 ÷ 11 = 8 ← value of 1 part of the ratio , then

6 parts = 6 × 8 = 48

5 parts = 5 × 8 = 40

88 bananas in the ratio 6 : 5 = 48 : 40

$9.89

step-by-step explanation:

9.90 = p x .06 x .25 (3/12 changed to a decimal)

9.90 = p x 0.015

9.90 - 0.015 = p

9.89 = p