3 years ago

Solve for x: four over five x + four over three = 2x

Mathematics

1 answer:

makkiz [27]3 years ago

8 0

The answer is...: x = 10/9

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What is the value of x?

Svetllana [295]

Answer:

x = 4

Step-by-step explanation:

ΔTRQ is an isosceles right triangle, so if we find the value of RT then the value of 'x' will be the same

We can find RT by creating a proportion based on the ratio of sides in a 30-60-90° triangle which, respectively, is 1 : $\sqrt{3}$ : 2

2 $\sqrt{3}$ /RT = $\sqrt{3}$ /2

cross-multiply:

$\sqrt{3}$ · RT = 4 $\sqrt{3}$

RT = 4

Therefore, x = 4

3 0

3 years ago

The formula for the area of a triangle is A=1/2bh, where b is the base of the triangle and h is the height of the triangle. The

eimsori [14]

Answer:

H=21ft

Step-by-step explanation:

Height=2•Area/Base

Area=126ft^2

Base=12ft.

H=2•126/12=21ft

H=21ft

Hope this helps :)

6 0

3 years ago

The number of different cars sold in some country rose from 210 in 1997 to 277 in 2007. Find the percent increase. Round to the

Virty [35]

Find percent increase by subtracting the amounts and dividing it by the old amount, then multiply the result by 100 to make it a percent.

Increase= (277-210)/210

67/210

Then it ends up as 0.319047619...

Multiply that by 100 to make it a percent, which is..

31.9047619..

Round it off, and you get..

32%!

4 0

3 years ago

Write a real world problem that can be solved by the equation y+8=20

DochEvi [55]

Phil started with 20 cookies and now there are 8 how many cookies did phil eat?
20-8=12 so phil ate 12 out of 20 cookies

6 0

3 years ago

Read 2 more answers

Diego then says, If we take half of the first number and double the second, the sum is 14. Write an equation that could represen

Luden [163]

Step-by-step explanation:

let the first number be x

let the second number be y

½ of the first number= ½x

Double the second; 2*y=2y

the sum... that is ½x+2y=14

8 0

3 years ago