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labwork [276]
3 years ago
15

Amber charges $8.25 per hour to baby-sit. One Saturday she baby sat for 3.5 hours in the morning and 2.25 hours in the afternoon

. To the nearest cent how much did she earn on Saturday?
Mathematics
1 answer:
maks197457 [2]3 years ago
3 0

Answer:

$47.44

Step-by-step explanation:

The sum of hours worked= 3.5hrs + 2.25hrs= 5.75hrs

Money earnt= rate x no. hours= 5.75hrs * $8.25/hr = $47.4375

Round to nearest cent = $47.44

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Bacteria usually reproduce by a process called binary fission. In this type of reproduction, one bacterium divides to
Fed [463]

Answer:

\large \boxed{\text{0.0462 min}^{-1}}

Step-by-step explanation:

One formula for the reproduction of bacteria is

\dfrac{N}{N_{0}} = e^{kt}

Data:

N = 2

N₀ = 1

  t = 15 min

Calculation:

\begin{array}{rcl}\dfrac{N}{N_{0}}& =& e^{kt}\\\\\dfrac{2}{1}& = & e^{k\times15 \text{ min}}\\\\2 & = & e^{15k \text{ min}}\\\ln 2 & = & 15k \text{ min}\\k & = & \dfrac{\ln2 }{\text{15 min}}\\\\& = & \textbf{0.0462 min}^{\mathbf{-1}}\\\\\end{array}\\\text{The value of the constant k is $\large \boxed{\textbf{0.0462 min }^{\mathbf{-1}}}$}

6 0
3 years ago
Please ignore the messy laptop..it’s not mine
vovangra [49]

answers

................

5 0
2 years ago
1. You are going to make one of these bags from a roll of cloth 1 meter wide. What
maks197457 [2]

Answer:

1 cm

You are going to make one of these bags from a roll of cloth 1 meter wide. What

is the shortest length that you need to cut from the roll for the bag?

Step-by-step explanation:

8 0
2 years ago
A car travels 80 kilometres in 2 and a half hours. What is its speed in kilometres per hour?
Allisa [31]
If a car travels 80 km/total distance is 450 km, how much time is required to reach? A car covers half of the distance between two places at 40km per hour and the other half distance at 60 km per hour!

I hope this helped! Mark me Brainliest! :) -Raven❤️
4 0
3 years ago
Christina made 84% of all shots attempted and mallory made 7/8 of all shots who made more
Ghella [55]

Hey!

--------------------------------------------------

~Turn both into decimals.

84% = 0.84

7/8 = 0.875

--------------------------------------------------

Hence, Mallory made more shots then Christina!

--------------------------------------------------

Hope This Helped! Good Luck!

6 0
3 years ago
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