The mean is the average.
i’ve found this a helpful way to remember:
the medians the middle
the mean old average
250 km = 2.5 times 100km
therefore the litres use = 2.5 * 8 = 20 litres
Hello!
Multiply:
21.33 × 2.04 = 43.5132
Add:
1.115 + 3.18 + 22.0613 + 12.2384 = 38.5947
Subtract:
43.5132 - 38.5947 = 4.9185
Use PEMDAS method to execute operations in the following order:
- Parentheses
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
First equation:
12 + (38 - 18)2 = 12 + 20 × 2 = 52
Second equation:
(12)2 - 6(2 - 23) = 24 - 6(-21) = 24 + 126 = 150
Hope this helps.
