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hoa [83]
3 years ago
14

How much do you need to subtract from 31/6 to make 5?

Mathematics
2 answers:
Greeley [361]3 years ago
7 0

Answer:

1/6

Step-by-step explanation:

let 'x' = number needed to subtract from 31/6 to equal 5

set up equation:

<u> 31 </u> - x = <u> 30 </u>

 6            6

-x = -1/6

x = 1/6

(30/6 is the same as 5)

check:

<u> 31 </u> - <u> 1 </u> = <u> 30 </u>

6      6      6

<u> 30 </u> = <u> 30 </u>

 6        6

MissTica3 years ago
4 0

Answer:

1/6

Step-by-step explanation:

since 31/6 is 5 1/6

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There are 10 cranberry and 15 strawberry juices. You randomly pick two juices. What's the probability you'll get two strawberry
lorasvet [3.4K]

Answer:

  • 7/20

Explanation:

The theoretical probability, P (A), of an event, A, is:

  • P(A) = number of outcomes of event A / total number of possible outcomes

For 10 cranberry and 15 strawberry juices, the number of outcomes for two strawberry juices are:

  • Combination of 15 strawberry juices chosen in two:

C^{15}_{2}=\frac{15!}{(15-2)!(2!)}=\frac{15!}{13!2!}=\frac{15\times 14}{2}=105

The total number of possible outcomes is:

  • Combination of 25 juices chosen in two:

C^{25}_{2}=\frac{25!}{(25-2)!(2!)}=\frac{25!}{23!2!}=\frac{25\times 24}{2}=300

Thus, the probability of randomly picking two strawberry juices is:

  • P (two strawberry juices) = 105/300 = 7/20

Note that you can obtain it as the product of the probabilities that the first juice is a strawberry juice and the second juice is also strawberry juice:

15/25\times 14/24=(15\times 25)/(14\times 24)=210/600=7/20

5 0
3 years ago
if 3 over 4 ton of pebbles covers 4 over 5 of a garden, how many tons of pebbles are required to cover the entire garden?
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If Angela has $500 to invest at 2.5% per annum compounded quarterly, how long will it be
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