Question

(1) Evaluate the following;

Answer 1

To find the precent of something you multiply it by 1/100th of what precentage youre trying to find. That's a really weird way of explaining it... It's easier to show with examples.

Some numbers you probably know off the top of your head (whats 100% of 5 or 50% of 20?) But you can also move the decimal place over twice. 100 becomes 1.00 and 1x5 is 5. Same with 50%, it turns into 0.50 or 0.5. and 0.5x20 is 10...

0.25 x 80 is 20 so 25% of 80 is 20

0.8 x 125 is 100 so 80% of 125 is 100

0.6 x 120 is 72 so 60% of 120 is 72

0.45 x 15 is 6.75 so 45% of 15 is 6.75

0.5 times 60 is 30 so 50% of 60 is 30

and for the shopkeeper

0.46 x 150 is 69 so he sold 69 newspapers (nice)

0.24 x 150 is 36 so he sold 36 pens

0.12 x 150 is 18 so he sold 18 books

and 0.18 x 150 is 27 so he sold 27 "other items"

we can check this by adding together the items sold

69+36+18+27=150

(this only works if they gave us 100% of the items sold)

Answer 2

Answer:

a c d

Step-by-step explanation: took the test