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andre [41]
3 years ago
11

A car travels 0.75 miles every minute. Explain how you could use proportional reasoning to find how far the car travels in one h

our
Mathematics
2 answers:
Elza [17]3 years ago
6 0

Answer:

45 miles.

Step-by-step explanation:

The car is traveling 0.75 miles every minute.

So, we can write that the car is moving in a minute 0.75 miles.

Here, the distance traveled by car is proportional to the time of travel i.e. the rate of distance traveled per minute is constant.

Hence, in 1 hour i.e. 60 minutes the car will travel by (0.75 × 60) = 45 miles. (Answer)

Hoochie [10]3 years ago
4 0

Answer:

in a hour 60 minutes and just multiply 0.75 by 60 and the answer is 45 miles per hour .

just copy and past

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The amount of soda a dispensing machine pours into a 12 ounce can of soda follows a normal distribution with a mean of 12.48 oun
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What is the blood type of the unknown parent?
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3 years ago
Write the equation of the sphere in standard form. x^2 + y^2 + z^2 + 2x − 4y − 6z = 22
madam [21]

The equation x^{2} +y^{2} +z^{2} +2x-4y-6z=22  in standard form looks like (x+1)^{2} +(y-2)^{2} +(z-3)^{2} =(6)^{2}.

Given equation of sphere be x^{2} +y^{2} +z^{2} +2x-4y-6z=22.

We are required to express the given equation in the standard form of the equation of sphere.

Equation is basically relationship between two or more variables that are expressed in equal to form. Equation of two variables look like ax+by=c. It may be linear equation,quadratic equation, cubic equation or many more depending on the powers of variables. The standard form of the equation of sphere looks like  x^{2} +y^{2} +z^{2} =r^{2}.

The given equation is x^{2} +y^{2} +z^{2} +2x-4y-6z=22.

We have to break 22 which is in right side into various parts according to the left side of the equation.

x^{2} +y^{2} +z^{2} +2x-4y-6z=-1-4-9+36

x^{2} +y^{2} +z^{2} +2x-4y-6z+1+4+9=36

x^{2} +1+2x+y^{2}+4-4y+z^{2} +9-6z=36

x^{2} +(1)^{2} +2*1*x+y^{2} +(2)^{2} -2*2y+z^{2} +(3)^{2} -2*3z=36

(x+1)^{2} +(y-2)^{2} +(z-3)^{2} =(6)^{2}

Hence the equation x^{2} +y^{2} +z^{2} +2x-4y-6z=22  in standard form looks like (x+1)^{2} +(y-2)^{2} +(z-3)^{2} =(6)^{2}.

Learn more about equations at brainly.com/question/2972832

#SPJ4

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