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Lisa [10]
3 years ago
15

Pretest 5. In a group of 250 students, 40 are seniors. What percentage of the group are seniors?​

Mathematics
1 answer:
zvonat [6]3 years ago
8 0

Answer:

\%seniors = 16\%

Step-by-step explanation:

Given

Students = 250

Seniors = 40

Required

Determine the percentage of seniors

This is calculated as thus;

\%seniors = \frac{Seniors}{Students} * 100\%

\%seniors = \frac{40}{250} * 100\%

\%seniors = \frac{4000\%}{250}

\%seniors = 16\%

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Katie's bank statement shows a closing balance of $178.11. There are no outstanding checks or deposits. Her checkbook shows a ba
xxTIMURxx [149]

Answer:

The amount <u>$20.00</u> is the overdraft fee.

Step-by-step explanation:

Given:

Katie's bank statement shows a closing balance = $178.11.

Her checkbook shows a balance = $198.11.

Now, to get what might account for the different balances?

Closing balance of Katie's bank statement = $178.11

Balance of her checkbook shows = $198.11.

As, there are no outstanding checks or deposits.

So, to get the difference of amount:

\$198.11-\$178.11

=\$20.00.

Thus, $20.00 is the overdraft amount.

Therefore, the amount $20.00 is the overdraft fee.

6 0
3 years ago
When visiting his parents, Tyler drives at an average speed of 42 km/h through urban areas and at an average speed of 105 km/h o
MaRussiya [10]

Answer:

  168 km

Step-by-step explanation:

Let x represent the distance Tyler drives at the slower speed, and let y represent the distance at the higher speed. Using time = distance/speed, we can write equations for the total travel time:

  x/42 +y/105 = 2.5

  x/28 +y/60 = 4.0 . . . . . 1.5 hours more than the usual 2.5 hours

Multiplying the first equation by 210, we have ...

  5x +2y = 525

Multiplying the second equation by 420, we get ...

  15x +7y = 1680

Subtracting 3 times the first of these equations from the second, we have ...

  (15x +7y) -3(5x +2y) = (1680) -3(525)

  y = 105

Putting this into the very first equation, we get ...

  x/42 + 105/105 = 2.5

  x/42 = 1.5 . . . . . . subtract 1

  x = 63 . . . . . . . . .multiply by 42.

The total distance to Tyler's parents' house is ...

  63 km + 105 km = 168 km

4 0
3 years ago
The time to fly between new york city and chicago is uniformly distributed with a minimum of 120 minutes and a maximum of 150 mi
Paul [167]
120+150=270
270÷2=135
Mean=135
5 0
3 years ago
A and b are complementary angles. a measures 28 degrees. what is the measure of b
elena-s [515]

Answer:

62

Step-by-step explanation:

90 - 28

complementary angles equal to 90

6 0
3 years ago
Read 2 more answers
Use the distributive property to write an expression equivalent to 8(35).
Debora [2.8K]

Answer:

280

Step-by-step explanation:

All you have to do is multiply 35 by 8 to get 280.

I am joyous to assist you anytime.

3 0
3 years ago
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