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3 years ago

Please help me please:)

Mathematics

2 answers:

Katen [24]3 years ago

7 0

Answer:

$\frac{9}{10}$

Step-by-step explanation:

4 = Red

3 = Blue

2 = White

1 = Yellow

What is probability that it is not yellow ?

$\frac{9}{10}$

Because only 1 marble is yellow and they are 9 other colours apart from yellow it must be $\frac{9}{10}$

nikklg [1K]3 years ago

4 0

Answer:

$\frac{9}{10}$

Step-by-step explanation:

Probability of an event occurring is

P = $\frac{outcomerequired}{total outcomes}$

P( yellow) = $\frac{1}{10}$

P( not yellow ) = 1 - $\frac{1}{10}$ = $\frac{9}{10}$

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Step-by-step explanation:

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3 years ago

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8 0

3 years ago

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

Katarina [22]

Answer:

v > -25/p

r = -5 +7/3 w

Step-by-step explanation:

- pv + 40 < 65

Subtract 40 from each side

- pv + 40-40 < 65-40

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Divide each side by -p (remember to flip the inequality since we are dividing by a negative)

-pv/-p > 25/-p

v > -25/p

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Subtract 7w from each side

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8 0

4 years ago

Elementary Algebra Skill

mr_godi [17]

The answer is a = $\frac{4}{-3}$

Step-by-step explanation:

1. Convert the mixed fraction to an improper fraction

To find the numerator, multiply the denominator by the whole number and add the numerator to it.

The denominator remains the same.

So, 2 $\frac{2}{3}$ will be $\frac{8}{3}$

2. Now the equation is,

$\frac{3}{2}$ a - $\frac{4}{3}$ a = $\frac{10}{3}$ + $\frac{8}{3}$ a

3. Take LCM on both sides.

For the left side, multiply the first fraction by $\frac{3}{3}$ and multiply the second fraction by $\frac{2}{2}$

$\frac{3*3}{2*3}$ a - $\frac{4*3}{3*3}$ a = $\frac{10+8a}{3}$

4. Solve by making a the subject

$\frac{9a-8a}{6}$ = $\frac{10+8a}{3}$

$\frac{a}{6}$ = $\frac{10+8a}{3}$

$\frac{3a}{6}$ =10+8a

$\frac{a}{2}$ = 10 + 8a

a = 2(10 + 8a)

a = 20 + 16a

a-16a = 20

-15a = 20

a = $\frac{20}{-15}$

a = $\frac{4}{-3}$

Therefore, the answer is a = $\frac{4}{-3}$

Keyword: Equations

Learn more about equations at

#LearnwithBrainly

4 0

3 years ago

5. While bird watching, Gabrielle saw 6 robins and 3 blue jays.

Semenov [28]

Answer:

Neither. They both saw the same amount of birds.

Step-by-step explanation:

Gabrielle saw 9 birds, but so did Chase. 6+3 is 9. 3+6 is also 9. The commutative property of addition states that a+b=b+a.

4 0

4 years ago