Answer: 13 hours
First, subtract 10, which is the base cost, from 75. You will get 65. Next, divide 65 by 5, the charge for each bicycle, to get 13.
Answer:
<h2>
Most explained:</h2>
40% = 100%
15 = (100% - 15% = 85%) 85% in Alaska
California = 15% of 40 = (0.15 x 40) = 6
Alaska = 85% of 40 = (0.85 x 40) = 34
<h2>The simple way (or the way i found it simple):</h2>
<h3>40 - 15 = 34</h3><h3>15% of 40 = 6</h3>
<h3>(I found the simple way after i solve the first way)</h3>
Bye, i hope this helps.
<h3 />
A 3-x because 3 equal f and g equal x for the second equation
Answer:
C
Step-by-step explanation:
time is directly proportional to the number of problems in the set
=> x = ky
k = constant of proportionality
when k = 12
x = 12y
by making y the subject, we divide both sides by 12
=> y = x/12
Answer:
x is 10
Step-by-step explanation:
- Let x is the side of the base
- Let h is the height
Given that:
<=> 2
+ 4xh = 4200 cm2
<=> 4xh = 4200 - 2
<=> h = (4200 - 2 )/4x
V = h
<=> V = (4200 - 2 )/4x
<=> V = (4200x - 2
)/4
- To find the maximum volume, we differentiate volume with respect to x:
dV/dx = (4200 - 6 )/4
Set dV/dx = 0, we have:
4200 - 6 =0
<=> = 700
<=> x = 10
d²V/dx² = -12x/4
It is negative so the volume is maximum.
So x is 10
