7.5 miles in 1/4 hour

1 answer:

4 0

Answer: name? must ride 7.5 miles in 1/4 hour to achieve this target speed so gender? needs to ride an addititonal 9.8 mile per1/4 hour

Step-by-step explanation: yeah you welcome

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The quantity y varies directly with the square of x and inversely with z. When x is 9 and z is 27, y is 6. What is the constant

ira [324]

$\bf \qquad \qquad \textit{double proportional variation}
\\\\
\begin{array}{llll}
\textit{\underline{y} varies directly with \underline{x}}\\
\textit{and inversely with \underline{z}}
\end{array}\implies y=\cfrac{kx}{z}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------$

$\bf \stackrel{\textit{\underline{y} varies directly with the square of \underline{x} and inversely with \underline{z}}}{y=\cfrac{kx^2}{z}}
\\\\\\
\textit{we also know that }
\begin{cases}
x=9\\
z=27\\
y=6
\end{cases}\implies 6=\cfrac{k9^2}{27}
\\\\\\
\cfrac{27\cdot 6}{9^2}=k\implies 2=k$

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stiks02 [169]

Answer:

Step-by-step explanation:

Since it is an exponential function, there is no way that it could be increasing at a steady pace, like adding 248 each time, since that would create a linear function ( a line.) The numbers are increasing each year, not decreasing.

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Stels [109]

Answer:

Step-by-step explanation:

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Using slope formula, 2-(-2)/2-0 = 4/2 = 2 = slope.

Plugging into slope-intercept form:

y=mx+b => y=2x-2

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2 years ago

while teresa listened to the radio, there were 9minutes of commercials, 12 minutes of talk, and 29minutes of music what percent

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RideAnS [48]

Answer:

n=12.5

Step-by-step explanation:

10/8=n/10

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3 years ago

7.5 miles in​ 1/4 hour

7.5 miles in 1/4 hour