2 years ago

John took 8 hours to drive 320 miles. At this same rate, how far will he travel in 16 hours?

Mathematics

1 answer:

Brilliant_brown [7]2 years ago

4 0

Answer:

640 Miles

Step-by-step explanation:

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What is the rate of change for a linear function that passes through the points (8, -10) and (-6, 14)

Anna71 [15]

Answer: $m=-1.714$

Step-by-step explanation:

By definition, the slope of the line is described as "Rate of change".

You need to use the following formula to calcualte the slope of the line;

$m=\frac{y_2-y_1}{x_2-x_1}$

In this case you know that the line passes through these two points: (8, -10) and (-6, 14).

Then, you can say that:

$y_2=-10\\y_1=14\\\\x_2=8\\x_1=-6$

Knowing these values, you can substitute them into the formula for calculate the slope of a line:

$m=\frac{-10-14}{8-(-6)}$

Finally, you must evaluate in order to find the slope of this line. You get that this is:

$m=\frac{-24}{8+6}\\\\m=\frac{-24}{14}\\\\m=-\frac{12}{7}\\\\m=-1.714$

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3 years ago

A package weighs P pounds P being a whole number. to ship this package by express costs one dollar and sixty five cents for the

deff fn [24]

Whole package weighs 20pounds

1.65 = 5pounds
0.12 = extra pound

3.45 - 1.65 = 1.80 : 0.12 = 15pounds
Adding up 15pounds and the first 5 pounds equal 20 pounds

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2 years ago

Which function below is the inverse of f(x)=x^2-25

ivanzaharov [21]

f(x) = x^2-25

inverse:

y = x^2-25

x = y^2-25

y = sqrt(5 +25)

Answer is B

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2 years ago

Find f(1/3) if f(n)=3n

tia_tia [17]

F(n)=3n
f(1/3)=3(1/3)
f(1/3)=1

Hope I didn't mess up for your sake

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2 years ago

How do you find the surface area of a cube

lianna [129]

Find the surface area of one side and multiply it by 6

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2 years ago