add 9 add 1 subtract 20 add 9 add 1
125
3, looks as if you add 9 to the first number, then add 1, divide by 5, add 9, add 1, divide by 5 to get 3
To get the average of 6 -15 -24 3 and -25, add them up and divide by 5. You get -55/5 = -11
It just does. You could break the 15 into 10 and 5 to get 10 x 25 = 250 and 5 x 25 = 125. Add 250 and 125 and you get 375.
add 9 add 1 subtract 20 add 9 add 1
25
27
125
3, looks as if you add 9 to the first number, then add 1, divide by 5, add 9, add 1, divide by 5 to get 3
To get the average of 6 -15 -24 3 and -25, add them up and divide by 5. You get -55/5 = -11
It just does. You could break the 15 into 10 and 5 to get 10 x 25 = 250 and 5 x 25 = 125. Add 250 and 125 and you get 375.
If two fractions share an equal denominator, you can simply add the top, so 15 + 4 = 19, so therefore = 19/25
15% + 25% = 40%
He should add 10 ml of the 15% solution.
The number halfway between 15 and 25 can be found by taking the average of the two numbers. To calculate this, add 15 and 25 together to get 40, then divide by 2 to get 20. Therefore, the number halfway between 15 and 25 is 20.
x-10=15 Add 10 to both sides x=25