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3 years ago

There are 14 crayons and 30 markers in a pencil box. what is the ratio of crayons to marker

Mathematics

2 answers:

Lana71 [14]3 years ago

7 0

Answer:

For every 7 crayons there are 15 markers

Step-by-step explanation:

14/30=7/15 because half of 14 is 7 and half of 30 is 15

rosijanka [135]3 years ago

4 0

14:30 - 7:15 when you half 14 and 30.

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Given csc(A) = 65/16 and that angle A is in Quadrant I, find the exact value of sec A in simplest radical form using a rational

IgorLugansk [536]

Answer:

secA = $\frac{65}{63}$

Step-by-step explanation:

cscA = $\frac{65}{16}$ = $\frac{hypotenuse}{opposite}$

This is a right triangle with hypotenuse = 65, opposite = 16 and

adjacent = $\sqrt{65^2-16^2}$ = 63

Then

secA = $\frac{hypotenuse}{adjacent}$ = $\frac{65}{63}$

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3 years ago

4. A company found that its monthly profit, P, is

yulyashka [42]

Answer:

Step-by-step explanation:

Ok so we aren't looking to maximize profits which is equivalent to finding the vertex of the parabola.

But we want to know what is the highest number of x so that our we aren't losing money. We aren't losing money when our profit is 0.

So we are asked to solve P(x)=0 for x and take the highest x of that equation.

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I'm going to divide both sides by -10 to make the numbers easier to work with later.

$x^2-12x+15=0$

I'm going to use the quadratic formula.

$x^2-12x+15=0$ when compared to $ax^2+bx+c=0$ gives us $a=1,b=-12,c=15$ .

We are going to plug this into our quadratic formula:

$x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}$ .

$x=\frac{12\pm \sqrt{(-12)^2-4(1)(15)}}{2(1)}$

$x=\frac{12\pm \sqrt{144-60}}{2}$

$x=\frac{12\pm \sqrt{84}}{2}$

$x=\frac{12}{2} \pm \frac{\sqrt{84}}{2}$

$x=6 \pm \frac{\sqrt{84}}{2}$

I'm ready to put this into my calculator.

The one with the plus gives me 10.5826 approximately.

The one with the minus gives me 1.4174 approximately.

The 10.5826 is the higher number.

So about 11 dollars.

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3 years ago

Read 2 more answers

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Nitella [24]

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So the correct answer to the nearest whole number is 8 units.

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4 years ago

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