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lesya [120]
3 years ago
15

A bag contians 5 blue and 8 red and 7 green marbels. A marble is selacted at random. Find the propobility the marbelis not red.

Mathematics
2 answers:
matrenka [14]3 years ago
6 0

Answer:

33%

Step-by-step explanation:

This is because there are three different types and 33 x 3 = 99 and that is close to 100%.

sammy [17]3 years ago
3 0

Total number of marbles = 5 + 8 + 7 = 20

Total number of non-red marbles = 5 + 7 = 12

P(not red) = 12/20 = 3/5

-

Answer: 3/5

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Find f(x) of -n^2 -3n if x is -5​
dangina [55]

Answer:

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Step-by-step explanation:

f(5)= -(5)^2-3(5)

-25-15=-40

5 0
3 years ago
Using the technique in the model above, find the missing sides in this 30° 600-90 right triangle.longShort 7Hypotenuse3.571314
dalvyx [7]
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3 0
3 years ago
1.81 repeating as a fraction
OlgaM077 [116]

Answer: 1 73/90 if the decimal is 1.81 and the one is repeating

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Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
5 3/2 x 3 6/7 you have 10 point to do the answer
pogonyaev

Step-by-step explanation:

Conversion a mixed number 5 3/2

to an improper fraction: 5 3/2 = 5 3/2

= 5 · 2 + 3/2

= 10 + 3/2

= 13/2

To find a new numerator:

a) Multiply the whole number 5 by the denominator 2. Whole number 5 equally 5 * 2/2

= 10/2

b) Add the answer from previous step 10 to the numerator 3. New numerator is 10 + 3 = 13

c) Write a previous answer (new numerator 13) over the denominator 2.

Five and three halfs is thirteen halfs

Conversion a mixed number 3 6/7

to an improper fraction: 3 6/7 = 3 6/7

improper fraction: 3 6/7 = 3 6/7

3 · 7 + 6/7 = 21 + 6/7 =27/7

To find a new numerator:

a) Multiply the whole number 3 by the denominator 7. Whole number 3 equally 3 * 7/7

= 21/7

b) Add the answer from previous step 21 to the numerator 6. New numerator is 21 + 6 = 27

c) Write a previous answer (new numerator 27) over the denominator 7.

Three and six sevenths is twenty-seven sevenths

Multiple:

13/2 * 27/7 = 13/2 · 27/7 = 351/14

3 0
2 years ago
I need help, it explains what to do but i still don't get it. ://
Ksju [112]

112-88 = 24

 they save $24 per month

so 650/24 = 27.083

so it will pay for itself in 27.083 months, round up to 28 months

8 0
3 years ago
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