3 years ago

Help please for gods sake:(

Mathematics

1 answer:

MakcuM [25]3 years ago

3 0

Answer:

Ratios are proportional if they represent the same relationship. One way to see if two ratios are proportional is to write them as fractions and then reduce them. If the reduced fractions are the same, your ratios are proportional.

Step-by-step explanation:

You might be interested in

I thought it was 139, but apparently im wrong, can someone please help?

Oksanka [162]

<h3>Answer: c = 29</h3>

Work Shown:

Use the pythagorean theorem

a^2+b^2 = c^2

21^2 + 20^2 = c^2

441 + 400 = c^2

841 = c^2

c^2 = 841

c = sqrt(841)

c = 29

4 0

3 years ago

The sides of a triangle have lengths of x, x + 5, and 25. If the longest side is 25, which of the following values of x would ma

Amiraneli [1.4K]

In a right angle, the sum of the squares of the two shorter sides is equal to the square of the longest side.
Here, the longest side is 25, the shorter sides are x and x+5.

$x^2+(x+5)^2=25^2 \\
x^2+x^2+10x+25=625 \\
2x^2+10x+25=625 \ \ \ |-625 \\
2x^2+10x-600=0 \ \ \ |\div 2 \\
x^2+5x-300=0 \\
x^2+20x-15x-300=0 \\
x(x+20)-15(x+20)=0 \\
(x-15)(x+20)=0 \\
x-15=0 \ \lor \ x+20=0 \\
x=15 \ \lor \ x=-20
$

The length of a side must be a positive number, so x=15.
The answer is C.

6 0

4 years ago

The scale on a map shows that 200 miles is represented by 5 inches on a map.Which proportion can be used to find the distance on

inn [45]

If you would like to know which proportion can be used to find the distance on the map that represents 50 miles, you can calculate this using the following steps:

200 miles ... 5 inches
50 miles ... x inch = ?

200 * x = 5 * 50
x = 5 * 50 / 200
x = 1.25 inch

The correct result would be <span>x = 5 * 50 / 200.</span>

4 0

3 years ago

Read 2 more answers

A chef combines 5 quarts of pineapple juice, 6 pints of milk, and 7 cups of apple juice to make smoothies. How many cups can b

leonid [27]

Here you go. Hope this helps.