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2 years ago

10

Jason works at Dell and earns $16.30 per hour for the first 40 hours of the week and then earn 1.5 times his regular rate. How m

uch does he earn in the first 40 hours? B. How much overtime pay does he earn in 50 hours

2 answers:

REY [17]2 years ago

7 0

Answer is $244.50 since he anything over 40 hours is time and a half

Dimas [21]2 years ago

5 0

He earned 244.50 in 50 hour

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Which could be used to solve this equation? 3 1/5 +n =9

MaRussiya [10]

Answer:

A

Step-by-step explanation

You need to subtract the 3 1/5 from both sides, which gives you 29/5

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2 years ago

he radioactive element carbon-14 has a half-life of 5750 years. A scientist determined that the bones from a mastodon had lost

elena-s [515]

Answer:

The bones were 12,485 years old at the time they were discovered.

Step-by-step explanation:

Amount of the element:

The amount of the element after t years is given by the following equation, considering the decay rate proportional to the amount present:

$A(t) = A(0)e^{-kt}$

In which A(0) is the initial amount and k is the decay rate, as a decimal.

The radioactive element carbon-14 has a half-life of 5750 years.

This means that $A(5750) = 0.5A(0)$ , and we use this to find k. So

$A(t) = A(0)e^{-kt}$

$0.5A(0) = A(0)e^{-5750k}$

$e^{-5750k} = 0.5$

$\ln{e^{-5750k}} = \ln{0.5}$

$-5750k = \ln{0.5}$

$k = -\frac{\ln{0.5}}{5750}$

$k = 0.00012054733$

So

$A(t) = A(0)e^{-0.00012054733t}$

A scientist determined that the bones from a mastodon had lost 77.8 % of their carbon-14. How old were the bones at the time they were discovered?

Had 100 - 77.8 = 22.2% remaining, so this is t for which:

$A(t) = 0.222A(0)$

Then

$0.222A(0) = A(0)e^{-0.00012054733t}$

$e^{-0.00012054733t} = 0.222$

$\ln{e^{-0.00012054733t}} = \ln{0.222}$

$-0.00012054733t = \ln{0.222}$

$t = -\frac{\ln{0.222}}{0.00012054733}$

$t = 12485$

The bones were 12,485 years old at the time they were discovered.

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2 years ago

What is the value of y<br><br> 4y squared-7y=15

zvonat [6]

Answer:

y= 3, (-5/4)

Step-by-step explanation:

4y^2-7y=15

4y^2 - 7y -15

(y-3)(4y+5)

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3 years ago

Find the product -3,-4.-2.5

Assoli18 [71]

Answer:

$-30$

Step-by-step explanation:

$-3(-4)(-2.5)$

Apply rule $-(-a) = a$

$=-3*4*2.5$

Multiply the numbers: $3*4*2.5=30$

$=-30$

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3 years ago

No links need help ASAP

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Answer:

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Step-by-step explanation:

The formulas for 180 clockwise and counterclockwise wise is -x,-y since both of them are negative they would become positive because -x * -x = + same with y.

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2 years ago

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