She starts off with $10.25 and gets a raise of $0.50, so she earns $10.75 per hour. Then she gets a raise of 10%, so then 10.75 x 0.10 = 1.075, so she earns $11.825 per hour. Then her third raise is $0.50 so she earns $12.325 per hour. The raise for next summer is 5%, so 12.325 x 0.05 = 0.61625, so she earns $12.94125.
She will earn about $12.94 per hour starting off next summer.
Answer:
D. $5,000
Step-by-step explanation:
The amount of money he should deposit is the principal.
The principal P can be gotten by
P = 100 I /RT
Where
I = interest
R = rate
T = Time
Given
I = $240
R = 1.6%
T = 3 yrs
P = 100 x 240 /1.6 x 3
Multiply through
= 24000/4.8
= $5000
So the length of the arc is given by: l = r*theta, here theta is the intercepted angle in unit radian
So, 80 degrees = 80/360 * 2pi = 4/9 * pi
So l = r * (4/9 * pi), the constant ratio is 4/9 * pi
