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3 years ago

Please identify the following. 15:50 = ?/100 What is the percent?

Mathematics

2 answers:

Bumek [7]3 years ago

4 0

15:50 = 30/100; it is 30%

Airida [17]3 years ago

4 0

Answer:

15:50 = 30:100. The percent is 30%.

Step-by-step explanation:

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If I have the full price of an item, & the discounted price of the same item, how do I find the discount percentage?

melamori03 [73]

Answer:

Subtract the discount price from the full price. Divide the amount of change by the original price.

Step-by-step explanation:

Example: Original price = $40 Sale price = $30

$40-$30= 10

10/40= 1/4

1/4 = .25 or 25%

5 0

2 years ago

Use l'Hôpital's Rule to find the following limit. ModifyingBelow lim With x right arrow 0StartFraction 3 sine (x )minus 3 x Ove

steposvetlana [31]

Answer:

$\lim_{x \to 0} \frac{3sinx-3x}{7x^3}=-\frac{1}{14}$

Step-by-step explanation:

The limit is:

$\lim_{x \to 0} \frac{3sinx-3x}{7x^3}=\frac{0}{0}$

so, you have an indeterminate result. By using the l'Hôpital's rule you have:

$\lim_{x \to 0} \frac{a(x)}{b(x)}= \lim_{x \to 0} \frac{a'(x)}{b'(x)}$

by replacing, and applying repeatedly you obtain:

$\lim_{x \to 0} \frac{3sinx-3x}{7x^3}= \lim_{x \to 0}\frac{3cosx-3}{21x^2}= \lim_{x \to 0}\frac{-3sinx}{42x}= \lim_{x \to 0}\frac{-3cosx}{42}\\\\ \lim_{x \to 0} \frac{3sinx-3x}{7x^3}=\frac{-3cos0}{42}=-\frac{1}{14}$

hence, the limit of the function is -1/14

8 0

3 years ago

A national hockey league rink is 115 feet longer than it is wide. If the perimeter of the rink is 570 feet, find the dimensions

ivolga24 [154]

The length of hockey rink is 200 feet and width of hockey rink is 85 feet.

Step-by-step explanation:

Given,

Perimeter of hockey rink = 570 feet

Width of hockey rink = w

Length of hockey rink = w+115

As a hockey rink is in rectangular shape;

Perimeter of rink = 2(Length + Width)

$570=2(w+115+w)\\570=2(2w+115)\\570=4w+230\\570-230=4w\\340=4w\\4w=340$

Dividing both sides by 4

$\frac{4w}{4}=\frac{340}{4}\\w=85$

Width of hockey rink = 85 feet

Length of hockey rink = 85+115 = 200 feet

The length of hockey rink is 200 feet and width of hockey rink is 85 feet.

Keywords: rectangle, division

Learn more about division at:

#LearnwithBrainly

3 0

2 years ago

The graph of a proportional relationship passes through the points (15,3) and (5,y). Find y.

snow_tiger [21]

Y is equal to 1 because to change 15 into 5 you have to divide by 3. 15/3=5. So you do the same to the other coordinate. Divide 3 by 3 to get 1.

5 0

2 years ago

What would you do to rationalize the denominator and simplify <img src="https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B%5Csqrt%7B2%7D%

Tanya [424]

Answer:

(5√2) / 2

Step-by-step explanation:

Multiply

(5 / √2) * (√2 / √2) = (5√2) / 2

5 0

2 years ago

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