Answer:
$13.45
Step-by-step explanation:
Divide $107.60 by 8
Answer:
79853709 with the exponent of 94
Step-by-step explanation:
Answer:
- 12.4
Step-by-step explanation:
Substitute the given values into the expression
- | 5(- 2) + (- 3) | + | 3(3) + 2(- 4.2) |
= - | - 10 - 3 | + | 9 - 8.4 |
= - | - 13 | + | 0.6 |
= - | 13 | + | 0.6 |
= - 13 + 0.6
= - 12.4
<h3>Answer:</h3>
2/15
<h3>Explanation:</h3>
There are 8C2 = 28 ways to choose 2 dimes from the 8 dimes in Annie's purse. There are 21C2 = 210 ways to choose 2 coins from the 21 coins in Annie's purse.
Of the 210 ways to choose 2 coins, 28 of the choices will result in 2 dimes being chosen. The probability of choosing 2 dimes is 28/210 = 2/15.
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<em>Comment on nCk</em>
The number of ways to choose k objects from n, when order does not matter, is ...
... n!/(k!(n -k)!)
For the computations above, we have ...
... 8C2 = 8·7/(2·1) = 28
... 21C2 = 21·20/(2·1) = 210
