1*20 = 20 Thus n = 20
Let the unknown number be n.Then 20 x n = 177 : so n = 177 ÷ 20 = 8.85 or 817/20.
Per cent or percentage equates to a hundredth. So, 7.75 = n x 20/100 n = 7.75 x 100/20 = 7.75 x 5 = 38.5. 20% of 38.5 is 7.75
x = 15 - N.
n = 5
1*20 = 20 Thus n = 20
Try using a calculator! 20 x 4 = 80. It could not be simpler!
20
Let the unknown number be n.Then 20 x n = 177 : so n = 177 ÷ 20 = 8.85 or 817/20.
Per cent or percentage equates to a hundredth. So, 7.75 = n x 20/100 n = 7.75 x 100/20 = 7.75 x 5 = 38.5. 20% of 38.5 is 7.75
n * 4 = 80 Divide both sides by 4: n = 20
8 x 20 = 160
x = 15 - N.
n = 5
n =33
By Ratio and Proportion: 20% : 8 = 25% : N N = (8 x 25%) ÷ 20% N = 10 Answer: If 20% = 8 then 25% = 10.
x=6=x=5+x=13+x=20 x cannot = x+5. This question has no answer.