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3 years ago

Solve n in the proportion

Mathematics

2 answers:

statuscvo [17]3 years ago

7 0

Answer:

Step-by-step explanation:

3*18 is 54 and 54/9 is 6 so n=6

algol133 years ago

4 0

N = 6 hope this helps

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Roberto will save 1/6 of his alowence each day. If he gets $2.00 a day, about how much money will he save each day? Round your a

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2.00/6 = $0.33 rounded to the nearest penny, it actually is $0.333333333333 (infinite)

I hope this helped you out :)

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4 years ago

Which of these place values is found to the left of 100?

Kipish [7]

Answer:

The answer is C

Step-by-step explanation:

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3 years ago

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Help fast plz 100 points!

MArishka [77]

Step-by-step explanationdomain and range of 1/(4-9x) is second one.

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3 years ago

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Scott and Letitia are brother and sister. After dinner, they have to do the dishes, with one washing and the other drying. They

ehidna [41]

Answer:

The probability that Scott will wash is 2.5

Step-by-step explanation:

Given

Let the events be: P = Purple and G = Green

$P = 2$

$G = 3$

Required

The probability of Scott washing the dishes

If Scott washes the dishes, then it means he picks two spoons of the same color handle.

So, we have to calculate the probability of picking the same handle. i.e.

$P(Same) = P(G_1\ and\ G_2) + P(P_1\ and\ P_2)$

This gives:

$P(G_1\ and\ G_2) = P(G_1) * P(G_2)$

$P(G_1\ and\ G_2) = \frac{n(G)}{Total} * \frac{n(G)-1}{Total - 1}$

$P(G_1\ and\ G_2) = \frac{3}{5} * \frac{3-1}{5- 1}$

$P(G_1\ and\ G_2) = \frac{3}{5} * \frac{2}{4}$

$P(G_1\ and\ G_2) = \frac{3}{10}$

$P(P_1\ and\ P_2) = P(P_1) * P(P_2)$

$P(P_1\ and\ P_2) = \frac{n(P)}{Total} * \frac{n(P)-1}{Total - 1}$

$P(P_1\ and\ P_2) = \frac{2}{5} * \frac{2-1}{5- 1}$

$P(P_1\ and\ P_2) = \frac{2}{5} * \frac{1}{4}$

$P(P_1\ and\ P_2) = \frac{1}{10}$

<em>Note that: 1 is subtracted because it is a probability without replacement</em>

So, we have:

$P(Same) = P(G_1\ and\ G_2) + P(P_1\ and\ P_2)$

$P(Same) = \frac{3}{10} + \frac{1}{10}$

$P(Same) = \frac{3+1}{10}$

$P(Same) = \frac{4}{10}$

$P(Same) = \frac{2}{5}$

8 0

3 years ago

An astronaut who weighs 126 pounds on Earth weighs only 21 pounds on

3241004551 [841]

Answer:

186 pounds

Step-by-step explanation:

let x = pounds on Earth

set up a proportion: $\frac{126}{21}$ = $\frac{x}{31}$

cross-multiply: 21x = 3906

divide by 21: x = 186

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3 years ago

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