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stiks02 [169]
3 years ago
7

for her book club, Sharon reads for 45 minutes each day. write an expression for the number of hours she reads in d days

Mathematics
2 answers:
Ivenika [448]3 years ago
8 0

An expression for the number of hours she reads in d days is 0.75d hours

<h3>Further explanation</h3>

Some units that need to be recalled are as follows :

<em>1 day = 24 hours</em>

<em>1 hour = 60 minutes</em>

<em>1 minute = 60 seconds</em>

Speed is the rate of change of distance.

\large { \boxed {v = \frac{d}{t} } }

<em>v = speed ( m/s )</em>

<em>d = distance ( m )</em>

<em>t = time taken ( s )</em>

Let's tackle the problem now!

Sharon reads for 45 minutes each day , it means that :

Time Interval → Duration of Reading

1 day → 45 minutes = 0.75 hours

2 days → 2 × 0.75 = 1.50 hours

3 days → 3 × 0.75 = 2.25 hours

.

.

.

d days → d × 0.75 = 0.75d hours

<h2>Conclusion :</h2>

The number of hours she reads in d days is 0.75d hours

<h3>Learn more</h3>
  • Conversion Factor of Speed : brainly.com/question/11224343
  • The Distance of the Cheetah  : brainly.com/question/7171227
  • The Speed of The Car : brainly.com/question/568302

<h3>Answer details</h3>

Grade: Middle School

Subject: Mathematics

Chapter: Arithmetic

Keywords: Addition , Subtraction , Multiplication , Division , Number , Expression , Time , Duration , Write

Dafna1 [17]3 years ago
5 0
N=(3/4)*h*d

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

n=Number of hours she reads

h=Hour(s)

d=Days

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

You see, with this formula - when d=2,

n=(3/4)*h*2=(6/4)*h=(3/2)*h=1.5 hours

So, in the space of 2 days, she had spent 1.5 hours reading.
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