<em>60 ; 100</em>
- <em>Step-by-step explanation:</em>
<em>Hi there ! </em>
<em>HCF = 20 = 4×5 = 2²×5</em>
<em>LCM = 300 = 3×100 = 3×4×25 = 2²×3×5²</em>
<em>LCM/HCF = 2²×3×5²/2²×5 = 3×5</em>
<em>a = 3×hcf = 3×20 = 60</em>
<em>b = 5×lcm = 5×20 = 100</em>
<em>Good luck !</em>
<em />
First, solve for x
x + y = 6
+
2x - y = 9
——————
3x = 15
x = 5
then just substitute that into one of the equations
(5) + y = 6
y = 1
then make into an ordered pair (x,y)
(5, 1)
Answer: 8 ft
<u>Step-by-step explanation:</u>

Answer:
The perimeter is 70
Step-by-step explanation:
Isosceles means all sides same length. So to start out, you need to firgure out x so you can do let's say 3x-5=19x, or you can do 2x=19-x, or an combination pretty much. Once completing this, you find that x=14. Now all you have to do is plug 14 into all the x spots, and add everything together
Hope it helped :-)
34%, 93%, 57%, and 80%.
All you do is move the decimal place two spaces to the right to turn a decimal into a percent.