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3 years ago

Sara read 12 books in 4 weeks. What is the unit rate for books per week? How many weeks would it take her to read 48 books?

Mathematics

1 answer:

nalin [4]3 years ago

3 0

Answer:

16 weeks

Step-by-step explanation:

To get the unit rate of books per week you need to divide 12 by 4

12/4 = 3

3 books a week

To read check how many week it takes to read 48 books you need to divide 48 by 3

48/3 = 16

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Power (denoted by PPP) can be defined as a function of work (denoted by WWW) and time (denoted by ttt) using this formula: P=\df

Amanda [17]

Answer:

$\dfrac{\text{kg}\cdot\text{m}^2}{\text{s}^3}$

Step-by-step explanation:

Power (denoted by P) can be defined as a function of work (denoted by W) and time (denoted by t) using this formula:

$P=\dfrac{W}{t}$

Unit of Work = $\dfrac{\text{kg}\cdot\text{m}^2}{\text{s}^2}$

Unit for Time = s

Therefore, the Unit of Power

$=$Unit for W \times \dfrac{1}{\text{Unit for time}}$

$=\dfrac{\text{kg}\cdot\text{m}^2}{\text{s}^2} \times \dfrac{1}{s} \\=\dfrac{\text{kg}\cdot\text{m}^2}{\text{s}^3}$

An appropriate unit for power is: $\dfrac{\text{kg}\cdot\text{m}^2}{\text{s}^3}$

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2 years ago

Copies of a famous painting were created at the local art museum for visitors to purchase. The copies had a 20% smaller area tha

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Original painting was 39 ft²
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3 years ago

A cube and a net of the cube are shown. The edge length of the cube is labeled 5 centimeters. The net consists of 4 squares conn

Natasha_Volkova [10]

We will determine the surface area as follows:

$A=6(5cm\ast5cm)\Rightarrow A=150cm^2$

So, the total surface area is 150 cm^2.

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1 year ago

A number to the 11th power divided by the same number to the 8th power equals 343. What is the number?

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3 years ago

Read 2 more answers

Jason can peel 15 potatoes in 25 minutes. Janette can peel 8 potatoes in 1/10 hour. If they start peeling at the same time how m

xenn [34]

9514 1404 393

Answer:

210 minutes

Step-by-step explanation:

Jason's rate of peeling is ...

(15 potatoes)/(25 minutes) = 15/25 potatoes/minute = 3/5 potatoes/minute

Janette's rate of peeing potatoes is ...

(8 potatoes)/(6 minutes) = 4/3 potatoes/minute

Their combined rate is ...

(3/5 +4/3) = (9 +20)/15 = 29/15 . . . . potatotes/minute

Then the time required for 406 potatoes is ...

(406 potatoes)/(29/15 potatoes/minute) = (406×15/29) minutes

= 210 minutes

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2 years ago