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3 years ago

(x+4), (x+12), (x-1) and (x+5) are in proportion. Find the value of x.

Mathematics

1 answer:

mixas84 [53]3 years ago

8 0

Answer:

Find the value of x, if 8,x, x, 50 are in proportion.

If a,b,c and d are in proportion then we have a/b = c/d

Now we need to find the value of x given if 8, x, x, 50 are in proportion.

So we have 8/x = x/50

Or x x x = 8 x 50

Or x^2 = 400

Or x = ±√400

Or x = ± 20

Therefore the value of x will be + 20 or - 20

Step-by-step explanation:

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Which angles are alternate exterior angles?

omeli [17]

A. 2 and 8
It’s the pair of angles on the outer side of each of those two lines but on opposite of the transversal.

4 0

3 years ago

What is the solution to this equation? x-8=15 A)x=13 B)x=17 C)x=7 D) x=23

Blababa [14]

Hi there! :)

Answer:

x=23

*The answer must have a positive sign.*

Step-by-step explanation:

This lesson it's about addition property of equality.

First, you add by 8 from both sides of an equation.

$x-8+8=15+8$

And then, you add by the numbers. Simplify and solve.

$15+8=23$

Final answer: → $x=23$

Hope this helps!

Thanks!

-Charlie

Have a great day!

3 0

3 years ago

Calculate the average mass of 100 marbles that weigh 824g

Lina20 [59]

Answer:

8.24 grams/marble

Step-by-step explanation:

Average mass = (total mass)/(number of marbles)

Here, that would be:

824 g

------------------- = 8.24 grams/marble

100 marbles

7 0

4 years ago

The time it takes to cover the distance between two cities by car varies inversely with the speed of the car. The trip takes 5 h

kogti [31]

v=d/t

44=d/5

d=220 mile

v=220/11

v=20 mph

7 0

3 years ago

Shelly has a roll of fabric and decides to make some scarves for her friends. The roll contains 623

swat32

Total length of the fabric is $6\frac{2}{3} =\frac{20}{3}$

We need to find the number of scarves can she make if she needs 5/6 of a yard for each scarf.

Let she needs x scarves. So, ATQ

Hence, she can make 8 scarves.

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3 years ago