Answer:
Step-by-step explanation:
slope, m = 0.1m/4m = 0.025
Theoretical effort (ignoring friction) = 9000N * 0.025 = 225 N
actual effort = 300 N
efficiency
= potential energy out / actual energy in
= 225 N / 300 N = 0.75
<em>Answer:</em>
<em>18</em>
<em>Step-by-step explanation:</em>
<em>Hi there !</em>
2² x 3³ x 4⁵/ 2 x 3 x 4⁵ =
<em>simplify 2 ; 3 ; 4⁵</em>
<em>= 2ₓ3²/1</em>
<em>= 2ₓ9</em>
<em>= 18</em>
<em>Good luck !</em>
Answer:
$1.35
Step-by-step explanation:
Set up a system of equations, where d represents the price of one drink and s represents the price of one sandwich:
3d + 5s = 25.05
4d + 2s = 13.80
We can solve this by elimination by multiplying the top equation by -2 and multiplying the bottom equation by 5.
-6d - 10s = -50.1
20d + 10s = 69
Add them together:
14d = 18.9
d = 1.35
Answer:
C
Step-by-step explanation:
The y intercept is is -3 so that eliminates 2 options. Next the king goes up to the top right so it’s a positive slope. So that leaves only one option. The slope goes up one and to the side two. So it’s 1/2