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kati45 [8]
4 years ago
14

A large university accepts 70​% of the students who apply. Of the students the university​ accepts, 45​% actually enroll. If 30

comma 000 students​ apply, how many actually​ enroll?
Mathematics
1 answer:
uysha [10]4 years ago
4 0

Answer: the number of students that actually enroll is 9450

Step-by-step explanation:

The large university accepts 70​% of the students who apply. If 30 comma 000 students​ apply, it means that the total number of students that applied is 30000 and the number of students accepted would be 70/100 × 30000 = 21000

Of the students that the university​ accepts, 45​% actually enroll. This means that the number of students that enrolled would be

45/100 × 21000 = 0.45×21000

= 9450

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The correct answer is 60cm^2 because the area of a triangle is half base*height -> 30/2*40
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The cost of sending an overnight package from Kansas City to Miami is $23.50 for a package weighing up to but not including 1
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For every pound that the package weight increases, the price of sending it increases by $3.80.

Step-by-step explanation:

The coefficient 3.80 multiplies the variable x (package weight), so if x is 1 pound the cost increase $3.80, if x is 2 pound the cost increase 2*3.80 = $7.6, and so on.  Generally speaking, for every pound that the package weight increases the cost increases by $3.80.

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4 years ago
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3 years ago
Joe has read ​30 % of a book. He has 63 more pages to finish. How many pages are there in the​ book?
meriva

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t = total number of pages

0.7t = 63

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4 0
3 years ago
Julie and Eric row their boat (at a constant speed) downstream for 40 miles in 4 hours, helped by the current. Rowing at the sam
Liula [17]

Answer: 3 miles per hour

<u>Step-by-step explanation:</u>

Use the formula "distance (d) = rate (r) x time (t)" to create a system of equations.

Let "r" represent the rate they are rowing

Let "c" represent the current

                            time          rate      distance        <u>EQUATION</u>

Downstream:     4 hours     r + c       40 miles         4(r + c) = 40

Upstream:         10 hours    r - c        40 miles         10(r - c) = 40


Distribute, then eliminate r to solve for c:

Down: 4r + 4c = 40  →   5(4r + 4c = 40)  →   20r + 20c = 200

  Up: 10r - 10c = 40  → -2(10r - 10c = 40) → <u>-20r + 20c</u> =<u>  -80</u>

                                                                                40c = 120

                                                                              <u> ÷40  </u>  <u>÷40 </u>

                                                                                    c =   3

4 0
3 years ago
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