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Kay [80]
3 years ago
11

A wheelchair ramp rises 1.5 feet for every 18 feet of horizontal distance it covers. Find the rate of chance of the ramp.

Mathematics
1 answer:
Svetach [21]3 years ago
6 0
<span>This question can not be answered because the horizontal distance covered is not specified.</span>
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Mr Yang’s son has a total of twenty-one $1 and $2 coins in his money box. When he counts his money, he finds that its total valu
irina [24]

Hello!

To solve this, first assume all the coins are $1. Then, find the value that would have. 1 * 21 = $21.

Now, see how far away from $30 we are. 30 - 21 = 9. Therefore, we need an increase by $9.

For each coin changed from a $1 to a $2, how much of an increase is there? $1. Therefore, change 9 coins to $2 coins to have an increase of $9. If he has 9 $2 coins, he'll have 21 - 9 $1 coins, or 12.

Therefore, your final answer is 12 $1 coins and 9 $2 coins.

Hope this helps!

3 0
3 years ago
Help i’ll give brainliest
andriy [413]

Answer:

(8, -2)

Step-by-step explanation:

It is reflected over the X axis

Because 8 is an x coordinate, it will not be changed. And because 2 is not an X coordinate it will be reversed, or turned to negative

4 0
3 years ago
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Last month, a dwarf lemon tree grew half as much as a semi-dwarf lemon tree. A full-size lemon tree grew three times as much as
dimulka [17.4K]

Answer: the dwarf tree grew by 3 inches.

the semi dwarf tree grew by 6 inches.

the full size tree grew by 18 inches.

Step-by-step explanation:

Let x represent how much the semi-dwarf lemon tree grew.

Last month, a dwarf lemon tree grew half as much as a semi-dwarf lemon tree. This means that the amount by which the dwarf lemon tree grew is expressed as x/2

A full-size lemon tree grew three times as much as the semi-dwarf lemon. This means that the amount by which the full-size lemon tree grew is expressed as 3x

Together, the three trees grew 27 inches. This means that

x/2 + x + 3x = 27

Cross multiplying by 2, it becomes

x + 2x + 6x = 54

9x = 54

x = 54/9

x = 6 inches

The dwarf tree grew by 6/2 = 3 inches.

The full-size lemon tree grew by 3 × 6 = 18 inches

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3 years ago
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Answer:

The answer is d=37 in

Step-by-step explanation:

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3 years ago
Persons younger than 18 years old are not eligible to vote. Let a be age in years.
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Younger than = less than

Less than symbol = <

People cannot have a negative age, so a must be positive

B. <span>a < 18 and a must be a positive number</span>
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