Answer:
15
Step-by-step explanation:
Call the unknown time x.
The mean is the sum of the numbers divided by the number of numbers.
There are 5 numbers.
(8 + 10 + 38 + x + 20)/5 = 18.2
(x + 76)/5 = 18.2
x + 76 = 91
x = 15
Answer:
13.03 units
using distance formula which is
root under
(X\/2-X\/1)^2 + (y\/2-y\/1)^2
Answer:
Step-by-step explanation:
It’s 168 because it’s area and area means multiplication, so you would do 14 x 12 = 168
<h2> <u><em>
answer: </em></u>21 is 70% of 30
</h2>
<h2><u><em>
Working out percentages
</em></u></h2><h2><u><em>
We have, 70% × x = 21
or, 70100 × x = 21
</em></u></h2><h2><u><em>
Multiplying both sides by 100 and dividing both sides by 70,
</em></u></h2><h2><u><em>
we have x = 21 × 100
70
x = 30
</em></u></h2><h2><u><em>
If you are using a calculator, simply enter 21×100÷70, which will give you the answer.</em></u></h2>
