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WARRIOR [948]
4 years ago
11

a roller coaster begins at 90 feet above ground level. then it descends 105 feet find the height of the coaster after the first

descent
Mathematics
2 answers:
ruslelena [56]4 years ago
7 0
the answer will be like this 105 miuns 90
lesya [120]4 years ago
4 0

Answer:

Step-by-step explanation:

your answer is 15:)

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3 lemons cost $0.99. At this rate, how much would 8 lemons cost?
devlian [24]

Step-by-step explanation:

3 lemons = $0.99

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8 lemons cost $2.64.

8 0
3 years ago
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Solve the system of equations by substitution.<br> 3/8x +1/3y=17/24<br> x+7y=8
const2013 [10]

Answer:

x=1, y=1.

Step-by-step explanation:

From the second equation:

x = 8 - 7y, so substituting for x in the first equation:

3/8(8 - 7y) + 1/3y = 17/24

3 - 21/8 y + 1/3y = 17/24

1/3y - 21/8y = 17/24 - 3

Multiply through by 24:

8y - 21*3 y = 17 - 72

8y - 63y = -55

-55y = -55

y = 1.

And  substituting for y in the second equation:

x + 7(1) = 8

x = 8 - 7

x =  1.

3 0
3 years ago
6. You and your family went to a restaurant and the bill came to $120. You decide to
ivann1987 [24]

Answer:

c

Step-by-step explanation:

18 percent of 120 is 21.6

6 0
3 years ago
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Convert 24% to a fraction in simplest form.
Morgarella [4.7K]
You can think of "per cent" as meaning "divided by 100". Thus
.. 24% = 24/100
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.. 24% = 24/100 = 6/25
7 0
4 years ago
Simplify (4m^2n-4mn+5)-(7m^2-3mn-2)+(9m^2n-2mn-1)
Phantasy [73]
6m^2-3mn+6 is the answer.
7 0
4 years ago
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