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4 years ago

10/25 = 2/n = :))))))))

Mathematics

2 answers:

Molodets [167]4 years ago

6 0

Step-by-step explanation:

10/25=2/n

cross multiply

10*n=2*25

n=50/10

n=5

Ugo [173]4 years ago

5 0

 HEYY!!!!!

HOPE THIS ONE HELPS U......

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Kamal’s bedroom has an area of 120 ft.². The width of the room is 5/6 the length of the room. What are the dimensions of Kamal’s

Bingel [31]

Add the numbers together then x 8 and you have your answer

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4 years ago

What is the sum of the lengths, in centimeters, of the two legs of a 30-60-90 right triangle, if the length of the hypotenuse is

Nesterboy [21]

The sum of the lengths of two legs of the 30°-60°-90° right triangle is 6.69 centimeters. Using the ratio of sides for the 30°-60°-90° triangle, the sum is calculated.

<h3>What is the ratio of sides for the 30°-60°-90° triangle?</h3>

The ratio for the 30°-60°-90° triangle is 1:√3:2 or x:x√3:2x

where x corresponds to the length opposite the 30° angle and x√3 is opposite of the 60° angle and 2x is opposite to the 90° angle.

<h3 /><h3>Calculation:</h3>

It is given that the triangle is a right triangle with angles 30°-60°-90°

For such a triangle, the ratio of side lengths is x: x $\sqrt{3}$ :2x

we have the length of the hypotenuse is $2\sqrt{6}$

So, 2x = $2\sqrt{6}$

⇒ x = $\sqrt{6}$

So,

the other length of the other leg is x√3 = √6 × √3 = 3 √2

Then, the sum of these two legs = √6 + 3√2 = 6.69 centimeters.

Learn more about the ratio of sides of a 30°-60°-90° triangle here:

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2 years ago

Please help!! markup and markdown word problems.

Lemur [1.5K]

Answer:

1) $343

2) $40

Step-by-step explanation:

1) Kathy paid (100 - 30)% of 490

so we can multiply 490 by 70%

490 x .7 = 343

2) let 'x' = original price

if she's saving 10% (or .10) then she's paying 90% (or .90)

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5 0

2 years ago

Hi im stuck on this problem, is anybody able explain to me how to do it? This is Two-Variable Substitution

Free_Kalibri [48]

The answer is a. the first step is to divide the whole bottom equation by -1 because x can’t be negative. you then plug in y + 9 into the first equation to solve. so the equation would be (y + 9) + y = 11. you do this because in substitution you plug in one of the equations into the other equation. you then get 2y + 9= 11. you would next subtract 9 to both sides which leaves you with 2y= 2, divide by both sides, y = 1. you then plug the why value into the first equation to figure out the value for x. so it would be x + 1 = 11, subtract 1, x equals 10.

sorry this was hard to explain! hope this helps!

6 0

4 years ago

Evaluate

lakkis [162]

A piece-wise function combines more than one functions of different input values.

The value of f(-1) is -3

From the graph, we have the following observations

When x = -1, y = -3
When x = -1, y = -4

Notice that there is a closed circle at the point where x = -1 and y = -3.

This means that y = -3 is inclusive of the values of y on that particular function

However, there is an open circle at the point where x = -1 and y = -3.

This means that y = -4 is exclusive of the values of y on that particular function

The correct corresponding value of y is when y is inclusive.

Hence, the value of f(-1) is -3

See attachment for the graph of the piece-wise functions

Read more about piece-wise functions at:

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3 years ago