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telo118 [61]
3 years ago
13

A computer randomly picks a number from the group 20, 21, 22, 23, 24, 25, 26, 27.

Mathematics
2 answers:
mylen [45]3 years ago
8 0
The answer you're looking for is .5 Hope it helps ;)
yuradex [85]3 years ago
4 0
%1.5 or %0.5. I think  I am not %100 sure.
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Is 6 a factor of 30 true or false
beks73 [17]

true 6x5=30 15x2=30 so forth

6 0
3 years ago
Read 2 more answers
Solve,justify and check: 3(7+5n)=6n+6(1+4n)
vlabodo [156]

Answer:

1=n

Step-by-step explanation:

Step 1- Distribute into the parenthesis.

7(3)+5(3)n= 6n+1(6)+4(6)n

Step 2- Multiply

21+15n= 6n+6+24n

Step 3- Add common variables to simplify.

21+15n= (24n+6n)+6

21+15n= 30n+6

Step 4- Subtract the smallest variable to both sides.

21+15n= 30n+6

   -15n  -15n

21= 15n+6

Step 5- Subtract 6 to both sides.

21= 15n+6

-6           -6

15= 15n

Step 6- Divide both sides by 15.

<u>15</u>= <u>15n</u>

15   15

1=n

4 0
3 years ago
Read 2 more answers
The next model of a sports car will cost 12.7% less than the current model. The current model costs $49,000 . How much will the
Wittaler [7]
Percentage of a number.

$49,000 x .127 = $6,223 is the decrease
$49,000 - $6,223 = $42,777
4 0
3 years ago
Read 2 more answers
What is the period of this graph?
SCORPION-xisa [38]

Answer:

Period is time between the two peaks.

Period = 4.114 - 1.870

Period = 2.244 seconds

Step-by-step explanation:

4 0
3 years ago
Javier volunteers in community events each month. He does not do more than five events in a month. He attends exactly five event
enot [183]

Answer:

P(x < 3) = 25\%

E(x) = 3

Step-by-step explanation:

The given parameters can be represented as:

\begin{array}{ccccccc}x & {5} & {4} & {3} & {2} & {1}& {0} & P(x) & {25\%} & {30\%} & {20\%} & {15\%} & {5\%} & {5\%} \ \end{array}

Solving (a): P(x < 3)

This is calculated as:

P(x < 3) = P(x = 0) + P(x = 1) + P(x =2) ----- i.e. all probabilities less than 3

So, we have:

P(x < 3) = 5\% + 5\% + 15\%

P(x < 3) = 25\%

Solving (b): Expected number of events

This is calculated as:

E(x) = \sum x * P(x)

So, we have:

E(x) = 5 * 25\% + 4 * 30\% + 3 * 20\% + 2 * 15\% + 1 * 5\% + 0 * 5\%

E(x) = 125\% + 120\% + 60\% + 30\% + 5\% + 0\%

E(x) = 340\%

Express as decimal

E(x) = 3.40

Approximate to the nearest integer

E(x) = 3

3 0
3 years ago
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