Answer:
A measure of average is a value that is typical for a set of figures. Finding the average helps you to draw conclusions from data. The main types are mean, median and mode. Data is also often grouped.
Step-by-step explanation:
To find the mean add all the ages together and divide by the total number of children.
If you type all those ages into a calculator it is easy to make an error.
-3 • (5x + 2y = 7)
-15x - 6y = -21
-2x + 6y = 9
__________
-17x = -12
x = 12/17
5(12/17) + 2y = 7
2y = 7 - 60/17
2y = 3.47
y = 1.735
Answer:
20ml in 1 minute. 1000ml is equal to 1 litre.
Step-by-step explanation:
1000/20 = 50
. 50 minutes will take to fill a litre
V= 1/3BH
= 1/3( 1/2x9x5)10
= 1/3(45/2) 10
= 75in ^3
