1 is x=8
2. is QR
this should be right
Our ratio is 5 : 2.
Once we know our ratio, we just have to figure out equivalent ones to fill in the chart. If it helps, feel free to think about this like a fraction! Fractions and ratios are pretty much interchangeable.
5 / 2 = ? / 4 = 10 / 4
10 : 4
5 / 2 = 25 / ? = 25 / 10
25 : 10
5 / 2 = ? / 20 = 50 / 20
50 : 20
Hope this helps!
Subtract 85 from both sides to get 12x>165
Divide both sides by 12 to get 165/12
explanation
3x(5+x) - 2x(3x-7)
open the brackets, we have
15x + 3x^2 - 6x^2 + 14x
collect like terms
3x^2 - 6x^2 +15x + 14x
-3x^2 + 29x
answer= -3x^2 + 29x
2(3x + 11) = 34
3x + 11 = 34/2
3x + 11 = 17
3x = 17 - 11
3x = 6
x = 6/3
x = 2