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kotykmax [81]
3 years ago
8

The simple interest I on an investment of P dollars at an interest rate r for t years is given by I = prt. Find the time it woul

d take to earn $900 in interest on an investment of $21,000 at a rate of 4.6%.
Mathematics
2 answers:
Bingel [31]3 years ago
8 0
I = prt
I/pr = prt/pr

t = I/pr
t = $900/$21000 x 0.046
t = $900/966
t = .9317 years


goldenfox [79]3 years ago
3 0
T=i/pr
t=900÷(21,000×0.046)
t=0.93167 y
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Larisa earns $7 per hour.she worked 40 hours at the regular rate, 3 hours at time and half, and 6 hours at double time.
VARVARA [1.3K]

Answer:

$6.07/hr. if I understand the question properly.  See below.

Step-by-step explanation:

I don't see the question, but will assume we want to find Larisa's base pay.  The $7/hr given is the average for the work sequence noted in the problem.  If this is incorrect, ignore the answer.

==================================

Let x be Larisa's base salary.  We are told, I think, that in one stretch of time Larisa earned an average of $7/hour.  That was composed of:

<u>Hours</u>  <u>Rate($/hr)</u>

  40           x

    3        1.5x

<u>     6    </u>     2x

  49

Her total income over this period would be:

40x +3(1.5x) + 6(2x)  [The hours worked times the pay rate for each period]

Her average income per hour would be:

(40x +3(1.5x) + 6(2x))/49

which we are told is $7/hr.

(40x +3(1.5x) + 6(2x))/49 = 7

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6 0
2 years ago
An employee earns $175 for 15 hours work.<br> Find the constant of variation.
LiRa [457]

Answer:

11.67

Step-by-step explanation:

Given: Employee earn $175 for 15 hours

We know, the constant of variation means the rate of change.

To know The constant of variation, we need to find how much employee earn each hour.

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Constant of variation= \frac{175}{15}= 11.666

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8 0
3 years ago
If the measure of an angle is p is three times less than twice the measure of angle q and angle p and angle q are supplementary
Marizza181 [45]
60 * 3 = 180 and 90 * 2 = 180
if they are supplementary angles than they equal 180 together. 
angle p is three times less than twice the measure of angle q so that means 180/3 = angle p and 180/2 = angle q. 
Angle q is 90 and twice that is 180 and Angle p is 60 and three times that is 180
so 60 is three times less than twice the measure of 90.
60 three times is 180 and 90 twice is 180 which means 3p = 2q and you have 180 because they are supplementary angles so you have really 180/3 = p and 180/2 = q
The answer is p = 60 and q = 90
8 0
3 years ago
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