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Veronika [31]
3 years ago
15

In an endurance race, Rachel ran

Mathematics
1 answer:
Reil [10]3 years ago
3 0

Answer:

31\frac{1}{5}\ miles

Step-by-step explanation:

we know that

The speed is equal to divide the distance by the time

so

The distance is equal to multiply the speed by the time

we have

speed=9\frac{3}{5}\ \frac{miles}{hour}

time=3\frac{1}{4}\ hours

distance=(9\frac{3}{5})(3\frac{1}{4})

Convert mixed number to an improper fraction

9\frac{3}{5}=9+\frac{3}{5}=\frac{9*5+3}{5}=\frac{48}{5}

3\frac{1}{4}=3+\frac{1}{4}=\frac{3*4+1}{4}=\frac{13}{4}

substitute

distance=(\frac{48}{5})(\frac{13}{4})=\frac{624}{20}=31,2\ miles

Convert to mixed number

31.2\ mi=31+0.2=31+\frac{1}{5}=31\frac{1}{5}\ miles

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Fudgin [204]

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6 0
2 years ago
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The function g(x) =8(4x) is reflected across the x-axis to create f(x) what is the equation for f(x)
Sveta_85 [38]

Answer:f(x)= -8 (4x) will be the reflected function across x-axis for the function g(x).

Explanation:  since we know that the image or reflection of x along x-axis = -x

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Similarly, for an another line y=3, y=-3 is a reflection.

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Thus, f(x)=-8(4x)



6 0
2 years ago
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