Answer:
Step-by-step explanation:
When you add integers you have either positive integers or negative integers. When you add positive integers, you just add normal. When you have negative integers, you have to see if the the larger number is positive or negative that will tell you if your answer is either negative or positive. Then you turn the negative into a positive then change the addition sign to a subtraction sign then solve.
To find the percentage of a number, first, convert it to a decimal and then multiply.
To convert a percentage to a decimal, move the decimal point over 2 spaces to the left. That makes 80% = 0.80
Then multiply 0.80 by 30.
0.80 • 30 = 24
Peggy got 24 questions correct.
Answer:
It would cost 4.88 per hour
Step-by-step explanation:
44÷9=4.8
Answer:
Step-by-step explanation: Alright adding fractions here we go.
3 3/5 + 2 1/4
First add up the whole numbers. 3+2=5
Then adding the mix numbers, what you need to do is find a common demoninator. What do 5 and 4 both go into? Well 20, so we multiply each demoinator to get 20.
3/5+1/4
12/20 + 5/20
17/20
Answer is 5 17/20.