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damaskus [11]
3 years ago
15

Sebastian studies from 3:15 - 4:45. His sister, Sasha studies from 4:30 - 6:15. Who studied longer and by how much

Mathematics
2 answers:
Alenkasestr [34]3 years ago
8 0
Sabastian: 1.5 hrs

Sasha : 1.75 hrs

Sasha studies .25 hrs longer (15 minutes)
Levart [38]3 years ago
7 0

Answer:

Step-by-step explanation:

Sebastian studies from 3 : 15 to 4 : 45.

the time of Sebastian's studies

  4 : 45

<u> - 3 : 15  </u>

<u>    1 : 30  </u>     hours

Sasha studies from 4:30 to 6:15.

The time of Sasha's studies

  6 : 15

<u> - 4 : 30  </u>

<u>   1  : 45 </u>       hours

Sebastian studied 1 hour 30 minutes and Sasha studied 1 hour 45 minutes.

Difference in time of study = 1 : 45

                                             <u> - 1 : 30  </u>

                                              <u>   0 : 15  </u> hours

Sasha studied longer than Sebastian by 15 minutes.

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2 years ago
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2 years ago
A survey of 2500 subscribers to a certain news paper revealed that 2250 people subscribe to the daily morning edition and 1250 s
Aleks04 [339]

1500 people subscribed Sunday edition and 250 people subscribed only sunday edition.

<u>Solution:</u>

Given, A survey of 2500 subscribers to a certain news paper revealed that 2250 people subscribe to the daily morning edition  

And 1250 subscribe to both the daily and the sunday editions.  

We have to find how many subscribe to the Sunday edition? how many subscribe to the Sunday edition only?

Let x denote the number who subscribe to the Sunday edition.  

Then the addition rule with overlap tells us that  

Those who subscribe daily edition + those who subscribe sunday edition - those who subscribe both daily and sunday edition = total subscribers in survey

2250 + x – 1250 = 2500

1000 + x = 2500  

x = 1500  

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6 0
3 years ago
50 Benson purchased a $1,800 certificate of deposit that earns s
Pavlova-9 [17]

Answer:

3.2%

Step-by-step explanation:

The computation of the annual rate of interest is shown below:

As we know that

Simple interest = Principal × rate of interest × time period

($1,857.60 - $1,800)  = $1,800 × rate of interest × 1

$57.60 = $1,800 × rate of interest × 1

So, the rate  of interest is

= $57.60 ÷ $1,800 × 100

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Hence, the rate of interest on annual basis is 3.2%

5 0
2 years ago
Complete the solution the equation. Find the value of y when x equals 15 .
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-15+15 - 9y =39+15
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