Answer:
Q7 19%
Q8 Justin's answer is incorrect. The correct answer is 225 not 215. See explanation below
Step-by-step explanation:
Q6 Express 57 cents as a decimal fraction of $3.00 in its simplest form
First convert both values to a common unit. The easiest is to convert $3.00 to cents by multiplying by 100
$3.00 = 3 x 100 = 300 cents
Now find the ratio of 57 to 300 and express it as a percentage by multiplying by 100
% value = 57/300 x 100
= 57/3
= 19
Answer: 19%
Q7. Justin multiplied √225 by 15 and got a product of 215. Is Justin's answer correct
No. Justin's answer is incorrect
√225 = 15
So √225 x 15 = 15 x 15 = 225
Hence the correct answer should be 225 not 215
I hope that helps you.
