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4 years ago

Kiley can complete 3 math problems in 1 1/4 hours. How many can she complete in one hour

Mathematics

2 answers:

posledela4 years ago

8 0

Answer:

2.4 math problems.

Step-by-step explanation:

3 math problems in 1 hour and 15 minutes.

Divide by 5. 3/5= 0.6

0.6 problems in 15 minutes.

2.4 problems in 1 hour.

How many math problems in one hour?

0.6 • 4= 2.4.

Sergio [31]4 years ago

7 0

3/(5/4) = x/1
x = 12/5 = 2.4 Problems/h

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A Best Eastern Motel is a regional motel chain. Its rooms rent for $90 per night, on average. The variable cost is $40 a room pe

Vlad1618 [11]

Answer: break even point (y) = 24000

Step-by-step explanation:

This is quite simple to solve,

We will take a step by step calculation.

let us begin;

Given that the Room rent per night is = $90

Also the variable cost per night = $40

Total fixed cost = $1200,000

Now we are asked to solve for the Break even point;

Remember that at break even point, the Revenue = cost

Say the required revenue from renting y rooms R = $90y

The cost of renting y rooms = C = $ (40y + 1200,000)

therefore from this we have the Break even point as

$90y = $ (40y + 1200,000)

where y = 24000

cheers i hope this helps!!!!!!

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3 years ago

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What is pi (3.14159265) to the force of pi?

Gelneren [198K]

It is =3.14159265359 :)

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3 years ago

What would x equal? Please help

lakkis [162]

23*2 = 46

5x-4 =46

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3 years ago

Find the exact value of cot 330° in simplest form with a rational denominator.

Hoochie [10]

Answer:

$\cot 330^{\circ} = -\sqrt{3}$

Step-by-step explanation:

The cotangent function can be rewritten by trigonometric relations, that is:

$\cot 330^{\circ} = \frac{1}{\tan 330^{\circ}} = \frac{\cos 330^{\circ}}{\sin 330^{\circ}}$ (1)

By taking approach the periodicity properties of the cosine and sine function (both functions have a period of 360°), we use the following equivalencies:

$\sin 330^{\circ} = \sin (-30^{\circ}) = -\sin 30^{\circ}$ (2)

$\cos 330^{\circ} = \cos (-30^{\circ}) = \cos 30^{\circ}$ (3)

By (2) and (3) in (1), we have following expression:

$\cot 330^{\circ} = -\frac{\cos 30^{\circ}}{\sin 30^{\circ}}$

If we know that $\sin 30^{\circ} = \frac{1}{2}$ and $\cos 30^{\circ} = \frac{\sqrt{3}}{2}$ , then the result of the trigonometric expression is:

$\cot 330^{\circ} = -\frac{\frac{\sqrt{3}}{2} }{\frac{1}{2} }$

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3 years ago

What is 0.55% of 60?

Bess [88]

Answer:

0.33

Step-by-step explanation:

0.0055 x 60 = 0.33

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3 years ago

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