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3 years ago

Write each ratio as a rate.

Mathematics

1 answer:

Setler [38]3 years ago

7 0

Answer:

a. 62 miles/hour

b. 1.25 laps/minute

Step-by-step explanation:

a. ratio of miles to the number of hours is 434 to 7 can also be written as

$\frac{434}{7}$ = 62 miles/hour

therefore rate or speed= 62 miles/hour

b. $\frac{number\ of \ laps}{number\ of \ minutes} = \frac{5}{4}$

= 1.25 laps/minute which rate or speed

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Show your work plz luv u

atroni [7]

Answer:

x=7

Step-by-step explanation:

Step 1: Subtract 4x from both sides.

x+30−4x=4x+9−4x

−3x+30=9

Step 2: Subtract 30 from both sides.

−3x+30−30=9−30

−3x=−21

Step 3: Divide both sides by -3.

−3x

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−3

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6 0

3 years ago

Solve: x^2 - 7x = -13

Reika [66]

There are a various of ways solve this expression. We can choose to do completing the square method or to use the quadratic formula. In this case, I will choose to do completing the square. We do as follows:

x^2 - 7x = -13
x^2 - 7x + 49/2= -13 + 49/2
(x - 7/2)^2= 23/2
√[(x - 7/2)^2]= √(23/2)
x-7/2 = √46 / 2
x = √46 / 2 + 7/2

Hope this answers the question. Have a nice day.

3 0

3 years ago

The cost T, in dollars, of tuition and fees at Addison Technical College is $125 per credit plus an $85 registration fee. How ma

Jet001 [13]

Answer:

Step-by-step explanation:

125 + 85=210.

210 * 8 = 1680.

Therefore, the answer is 8.

6 0

3 years ago

Inverse Function In Exercise,analytically show that the functions are inverse functions.Then use the graphing utility to show th

DanielleElmas [232]

Answer:

$g^{-1}(x)=f(x)=e^{\frac{x}{3}}$

Step-by-step explanation:

We have been given two functions as $g(x)=\text{ln}(x^3)$ and $f(x)=e^{\frac{x}{3}}$ . We are asked to show that both functions are inverse of each other algebraically and graphically.