9514 1404 393
Answer:
- 16,965 mm/min
- 90π ≈ 282.7 radians/min
Step-by-step explanation:
The circumference of the CD is ...
C = πd
C = π(120 mm) ≈ 376.99 mm
This is the distance a point on the edge of the CD will travel when making one revolution. It will travel 45 times this far when making 45 revolutions:
(376.99 mm/rev)(45 rev/min) ≈ 16,965 mm/min
__
There are 2π radians in each revolution, so the angular speed is ...
(2π rad/rev)(45 rev/min) = 90π rad/min ≈ 282.7 rad/min
Solve for b?
1. Distribute “4(4b+3)” and “3(6-11)”
16b+12+2b=18-33
2. combine like terms
18b+12=-15
18b=-27
b=-27/18
3. simplify
b=3/2
Answer:
3.79545454545 or 3.7954 with a little line over the 54 showing its repeating.
<h3>Zara earned $ 134 on friday including commission</h3>
<em><u>Solution:</u></em>
Given that,
zahra earns $80 each day plus a 6% commission on her sale at an appliance store
zahra has $900 in sales
<em><u>Find the commission amount</u></em>
commission amount = 6 % of 900
Zara earnings including commission amount = 80 + 54 = 134
Thus Zara earned $ 134 on friday including commission
