Let x = hours worked as a clerk ($12 per hour).
Let y = hours worked as a cashier ($8.25 per hour).
She worked 55 hours, therefore
x + y = 55 (1)
She earned $585, therefore
12x + 8.25y = 585 (2)
From (1), obtain
y = 55 - x (3)
Substitute (3) into (2).
12x + 8.25(55 - x) = 585
12x + 453.75 - 8.25x = 585
3.75x = 131.25
x = 35
y = 55 - x = 55 - 35 = 20
Answer: a) Office clerk: 35 hours; cashier: 20 hours.
Answer:
Option (C)
Step-by-step explanation:
Conjugate root theorem:
If (a - bi) is a root of a polynomial with real coefficients, then (a + bi) will be the other root.
By this theorem, if (3 - 2i) is one root of the quadratic function 'f', other root will be (3 + 2i).
Therefore, x = (3 + 2i) will be the other root.
Option (C) will be the answer.
The withdrawal fee will not take the compund rate, so, you should apply the usual formula for not compound rate,
<span>
400⋅0.025/12⋅3=2.50
</span><span>Where we divide the APR to adapt to a monthly base, and then multiply the number of months.</span>
Answer:
Jada will be .6 miles ahead of Elena
Step-by-step explanation:
3 miles per hour times 3 (for the 3 hours) gives you nine miles.
2.8 miles per hour time 3 ( for the 3 hours) give you 8.4 miles.
Subtract 9 by 8.4 to get .6 miles.
