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Lena [83]
2 years ago
5

Select three ratios that are equivalent to 7:6,

Mathematics
1 answer:
zavuch27 [327]2 years ago
4 0

Answer: 12:14 21:18 42:36

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Solve each equation 12x - 51 = 3(x + 7)
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Answer:

x=8      

Step-by-step explanation:

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3 years ago
One number is 4 times as large another. The sum of their reciprocals is 45/4. Find the two numbers
Reptile [31]
Let, 
the numbers be "x" and "y"
According to the question,
x = 4y ......................................................equation (1)

\frac{1}{x} + \frac{1}{y}= \frac{45}{4}...................................equation (2)

Taking equation (2)
\frac{1}{x} + \frac{1}{y}= \frac{45}{4}

Substituting the value of "x" from equation (1), we get,

\frac{1}{(4y)} + \frac{1}{y}= \frac{45}{4}

\frac{1}{4y} + \frac{1}{y}* \frac{4}{4} = \frac{45}{4}

\frac{1}{4y} + \frac{4}{4y}= \frac{45}{4}

\frac{1+4}{4y} = \frac{45}{4}

\frac{5}{4y} = \frac{45}{4}

Cross multiplying, we get,

5*4 = 45*4y

20 = 180y
<u />
\frac{20}{180}  = y

\frac{1}{9}  = y

y =  \frac{1}{9}

Now,
Taking equation (1)
x = 4y
Substituting the value of "y", we get

x = 4( \frac{1}{9} )

x= \frac{4}{9}

So, the numbers are \frac{1}{9} and \frac{4}{9}

7 0
3 years ago
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A jet ski rental charges a flat rate of $75, plus an additional $60 per hour. You do not want to spend more than $200. How many
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Answer:

22.5

Step-by-step explanation:

You time 75 by 60. Then, you divided it by 200. The answer is 22.5.

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3 years ago
What is the hypotenuse?
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Answer:

he longest side of a right triangle, opposite the right angle.

Step-by-step explanation:

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<h2><em><u>My</u></em><em><u> </u></em><em><u>equation</u></em><em><u> </u></em></h2>

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