Mowing 4 lawns in 6 hours gives a mowing rate of 6/4 = 1.5 hours per lawn.
To mow 9 lawns, you need 1.5*9 = 13.5 hours.
The answer is B.
The answer to your question would be true.
Similarly to fact that a two-order uses two equations, and a three-order system uses three, so a four-order uses four. Basically, just remember that the number of equations matches the number of the order.
If it's just 1.1 <= 1.21 then its deemed true
But since there's no identified x I'll list 2 possible solutions.
1) 1.1x ≤ 1.21
Divide 1.1 from both sides.
x ≤ 1.1
I don't know how to graph on a computer, sorry.
2) 1.1 ≤ 1.21x
Divide 1.21 from both sides.
x ≥ 0.91 (Approx.)
Again, don't know how to graph on a computer.
Answer:
75
Step-by-step explanation:
You use the area of a triangle formula A= bh/2. If you substitute the numbers, it would be A (10 * 15)/2 which is 75