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Mnenie [13.5K]
4 years ago
13

Dagne measures and finds that she can do a vertical jump that is 27.5% of her height. If Dagne is 48 inches tall, how high can s

he jump?
Mathematics
2 answers:
Lina20 [59]4 years ago
8 0
It's 13.2 inches........... I have to do this to answer u btw
soldi70 [24.7K]4 years ago
4 0

Answer: 13.2 inches

Step-by-step explanation:

Since, According to the question,

The height of Dagne is 48 inches.

And, She can do a vertical jump that is 27.5% of her height.

Thus, The height of vertical jump she can do = 27.5% of 48

= \frac{27.5\times 48}{100}

= \frac{1320}{100}

= 13.20

Therefore, she can jump 13.2 inches vertically.

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Can someone explain me where this 13 came from, please? (sorry my poor english i'm brazilian)
Alekssandra [29.7K]

Hey there,

a-7=3(b+2), we do 3 times b and 3 times 2 according to the rule.

a-7=3b+6 we change + to - and - to + when move nums from 1 side to another one.

a=3b+13 we get the solution.

Hope this helps :)

7 0
3 years ago
the base of a right triangle is (x-5). The height of the triangle is (2x+1). The perimeter of the triangle is (7x+5). Find the a
Dovator [93]

Answer:

Area: (x^2)-(9x/2)-2                3rd side=4x+9

Step-by-step explanation:

First, let's find the third side. If all of the sums add up to 7x+5, then we can easily subtract the two sides that we do have.

2x+1+x-5=3x-4

Now, you have to ask yourself what added to 3x-4 can be equal to 7x+5.

It's 4x+9 because we combine like terms. That's the third side. Now, we should follow the formula for getting the area of triangle using the side lengths:

(2x+1)(x-5)/2=area of triangle

2x*x=2x^2

2x*-5=-10x

x*1=x

-5*1=-5

Now the total is 2x^2-9x-4 when you continue to combine like terms. Now all we have to do is divide by 2. So, the area is 2x^2-9x-4/2. You can simplify that. Answer is up top.

7 0
3 years ago
Need help with this problem!! Point X is the midpoint of HI. What is the coordinate of the point X?
dimaraw [331]

Answer:

1

Step-by-step explanation:

The midpoint is the average of the points H and I

midpoint = | \frac{-2+4}{2} | = | \frac{2}{2} | = | 1 | = 1

6 0
3 years ago
20pts<br><br> Divide algebraic fraction pls<br><br><br> 12a2/18b2÷4a/3b
KonstantinChe [14]

Answer:

3a/6b

Step-by-step explanation:

12a^2/4a

= 12/4 * a^2/a

= 3a

18b^2/3b

= 18/3 * b^2/b

= 6b

Hence, the answer is 3a/6b.

Hope this helped!

5 0
3 years ago
Dimensional Analysis
Firlakuza [10]

Answer:

  • $5.058 USD/gal
  • $60.70 USD to fill the tank

Step-by-step explanation:

You want to know the cost per gallon of gas and the cost for 12 gallons of gas when the cost per liter is $1.31 CDN and the exchange rate is $1.02 USD per CAD.

<h3>Cost per gallon</h3>

The conversion between liters and gallons is ...

  1 US gallon = 3.785411784 liters (exactly)

Then the cost conversion is ...

  \dfrac{\$1.31\text{ CAD}}{1\text{ L}}\times\dfrac{3.785411784\text{ L}}{1\text{ gal}}\times\dfrac{\$1.02\text{ USD}}{\$1.00\text{ CAD}}\approx\boxed{\$5.058\text{ USD/gal}}

The cost per gallon in terms of US dollars is about $5.06.

<h3>Cost per tank</h3>

The cost for 12 gallons will be ...

  (12 gal)×($5.058 /gal) ≈ $60.70

It will cost you $60.70 to fill your 12 gallon tank.

__

<em>Additional comment</em>

The price of gas is routinely specified to tenths of a cent, both in the US and in Canada. As of today, the cost of gas in Canada has declined to $1.864 CAD/liter. At today's exchange rate of about $0.77 USD per CAD, the equivalent price is $5.406 USD/gal.

8 0
2 years ago
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