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Elena-2011 [213]

3 years ago

5

Robert mixes yellow and blue paint in the ratio of 3:2 .If he used 12 gallons of yellow paint, how many gallons of blue paint wo

uld he use?

1 answer:

GREYUIT [131]3 years ago

3 0

Answer:

8 gallons

Step-by-step explanation:

3x4=12 (do the same to the opposite) 2x4=8 or 8 gallons of blue paint (to be more specific)

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A 12-volume numbered set of books is placed randomly on a shelf. What is the probability that the books will be numbered in the

spayn [35]

Answer:

Step-by-step explanation:

There is a 1/12 probability that volume 1 will be correctly put in position 1.

If we assume that volume 1 is right, then since there are then only 11 books left to choose from, there is then a 1/11 prob that volume 2 will be in position 2. And so on. By the same reasoning there is 1/10 prob that volume 3 is then right, 1/9 prob for volume 4, 1/8 prob for volume 5, and 1/7 prob for volume 6,

and 1/6 prob for volume 7,and 1/5 prob for volume 8,and 1/4 prob for volume 9,and 1/3 prob for volume 10,and 1/2 prob for volume 11,and 1/1 prob for volume 12.

So the probability is 1 /(12*11*10*9*8*7*6*5*4*3*2*1) = 1 / 479,001,600 ....

5 0

3 years ago

The quotient of 300 and the quality of x times 2

asambeis [7]

$\frac{300}{ x^{2}}$

4 0

3 years ago

Read 2 more answers

What is the answer? Please help

goblinko [34]

Answer:

A

Step-by-step explanation:

One and three hundred and four thousand

1+ 3/100+ 4/1000

5 0

3 years ago

Read 2 more answers

How do I write m is the set of integers that are greater than negative one and less than four

Angelina_Jolie [31]

$\bf \stackrel{\textit{\large Set Builder notation}}{\{m|m\in \mathbb{Z}, m > -1, m < 4\}}~\hfill \stackrel{\textit{\large or this way}}{-1$

7 0

3 years ago

Artie's dad's house is 21 ft tall. If Artie's dad is at the top of the house installing shingles, and his son Artie is on the gr

konstantin123 [22]

Answer:

B. 60.26°

Step-by-step explanation:

Given:

Consider the diagram representing the above scenario.

The top of the house where dad is standing is at A. The point where his son is standing is B. The bottom of the house is at C. AC is the height of house, BC is the distance between the house and son.

Height of the house (AC) = 21 ft

Distance between the house and son (BC) = 12 ft

Let the angle of depression for the dad be 'x'.

From the figure, it is clear that,

Angle of depression of the dad will be same as angle of elevation of Artie.

For triangle ABC,

$\tan x=\frac{AC}{BC}\\\\\tan x=\frac{21\ ft}{12\ ft}\\\\\tan x=1.75\\\\x=\tan^{-1}(1.75)\\\\x=60.26$

Therefore, the angle of depression from the top of the house to the spot where Artie is standing is 60.26°.

Therefore, the correct option is option (B).

6 0

3 years ago