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bogdanovich [222]
3 years ago
11

In 1990, the cost of tuition at a large Midwestern university was $99 per credit hour. In 2003, tuition had risen to $268 per cr

edit hour
Mathematics
1 answer:
vodka [1.7K]3 years ago
5 0

Answer:

63%

Step-by-step explanation:

<em>From the question, we aim to find the percent increase in the tuition</em>

Given data

initial cost= $99 per credit hour

Final cost=  $268 per credit hour

% increase= (Final - initial )/initial *100

substitute

% increase= (268- 99 )/268 *100

% increase= 169 /268 *100

% increase= 0.630*100

% increase= 63%

Hence the increase in the tuition from 1990 to 2003 is 63%

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Max is thinking of a number, which he calls n. He adds 8 and then doubles the sum. What is Max's final number if his starting nu
Sonja [21]

Based on the given situation, Max final number if his starting number is 7 is -4.5

<h3 /><h3>Algebra</h3>

  • Unknown number = n

  • He adds 8

n + 8

  • then doubles the sum

2(n + 8)

  • starting number = 7

So,

2(n + 8) = 7

2n + 16 = 7

2b = 7 - 16

2n = -9

n = -9/2

n = -4.5

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3 0
2 years ago
The table shows the heights of 40 students in a class.
Darya [45]

Answer

A. 129.3

B. The students ages can be any number within the ranges, so having the middle number wont represent the other possible heights.

Step by step

'h' is the number between the surrounding number, the first would be 122.

You need to multiply the hight by frequency of each one,

122x7 =854

126x8=1008

130x13=1690

134x9=1206

138x3=414

Add them up = 5172

5172/40 =129.3

4 0
2 years ago
Emily is entering a bicycle race for charity. Her mother pledges $0.40 for every 0.25 mile she bikes. If Emily bikes 15 miles, h
Dominik [7]

Set it into proportions.

$0.40/0.25 miles = x/15 miles

And then solve the proportion.

0.25*x = 0.40*15

0.25x = 6

0.25x/0.25 = 6/0.25

x=24


Therefore, Emily's mother donates $24 if she bikes 15 miles.

5 0
4 years ago
Read 2 more answers
Simplify 4 square root of 2 end root plus 7 square root of 2 end root minus 3 square root of 2
ehidna [41]

Answer:

8√2

Step-by-step explanation:

4√2 + 7√2 - 3√2 = (√2)(4 + 7 - 3) = 8√2

Recognize that √2 is a common factor and simply add its coefficients.

6 0
3 years ago
Read 2 more answers
Suppose a ski jumper is 2,650 feet from the base of a ski jump and looks up to the top at an angle of elevation of 26 degrees. A
yuradex [85]
We can draw a right triangle to easily visualize the given problem. Since the ski jumper is 2650 ft from the base of the ski jump, we can consider this as one of the right triangle's legs. 

What we're looking for is the height of the ski jump or the other leg of the right triangle. Since the ski jumper looks up at an angle of elevation of 26°, we can use the tangent function to find the missing height. You may refer to the image below to better understand the problem. 

Recall that tanθ = (opposite side facing the angle)/(side adjacent to the angle). For this case, we have

\tan26= \frac{x}{2650}\\2650(\tan26) = x\\x \approx1292.49

Hence, the height of the ski jump (rounded off the nearest whole foot) is 1292 feet. 

Answer: 1292 feet

4 0
4 years ago
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