JK+KL=JL
(5x-8)+7x-12=10x-2
(add common terms together)
12x-20=10x-2
(get the term with x alone on one side of the equation)
2x=18
(divide by 2 to get x alone)
x=9

Find KL:
KL=7(9)-12
KL=51

8 0

3 years ago

Simplify:<br> 5 1/2 - 2 1/4<br> 1 3/4 + 1 1/2

EastWind [94]

A) 5 1/2 - 2 1/4
5-2 = 3
1/2 - 1/4 = 1/4
Final Answer: 3 1/4 or in decimal 3.25

B) 13/4 + 11/2
35/4 = 8 3/4
Final Answer: 8 3/4 or in decimal 8.75

5 0

3 years ago

In the diagram, △ABC ≅ △WRS. What is the perimeter of △WRS?

r-ruslan [8.4K]

Answer: Third option is correct.

Step-by-step explanation:

Since we have given that

△ABC ≅ △WRS

So, Perimeter of △ABC is given by

AB+BC+CA

here, AB = 3 units

BC = 4 units

AC = x

By pythagorus theorem, we get that

$AC^2=AB^2+BC^2\\\\x^2=3^2+4^2\\\\x^2=9+16\\\\x^2=25\\\\x=\sqrt{25}\\\\x=5\ units$

So, perimeter of △ABC is

3+4+5=12 units

So, the perimeter of △WRS is also 12 units as they are similar triangles .

Hence, Third option is correct.

6 0

3 years ago

Read 2 more answers

The measure of an angle is 104 . What is the measure of its supplementary angle?

Galina-37 [17]

The answer is 180

Hope that helps

7 0

2 years ago

Read 2 more answers