It usually helps a person to get a better idea of how much or how big something is. I'm actually not sure why, but let's use an example. You got 38 out of 43 questions on a test. when you see 38/43 you don't really know how good that score is, but if you make it a percentage (Dividing the first number by the second to get the percentage) it's 88%. You know you did well on that test.

7 0

3 years ago

A colony of 1000 bacteria doubles in every 8 minuets. what will the population 16 minuets from now

topjm [15]

After 8 minutes it would be 2000, so after 16 it would be 4000

6 0

3 years ago

Janie bought 3 apples and 9 bananas. Each apple costs $0.30, and each banana costs $0.90. Enter an expression representing the t

ehidna [41]

Answer:

0.3a + 0.9b

Step-by-step explanation:

1 apple = $0.3

1 banana = $0.9

a apples = $0.3 * a

b bananas = $0.9 * b

total cost = 0.3a + 0.9b

4 0

3 years ago