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Daniel [21]
2 years ago
13

If Mike can tune 4 cars in 3 hours. How many cars can Mike tune in 8 hours?

Mathematics
1 answer:
motikmotik2 years ago
5 0

Answer:

10 2/3 cars

Step-by-step explanation:

We can use a ratio

4 cars            x cars

------------- = -----------

3 hours          8 hours

Using cross products

4 *8 = 3 *x

32 = 3x

Divide each side by 3

32/3 = 3x/3

10 2/3 cars

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Mr. Mole left his burrow and started digging his way down at a constant rate. Time (minutes) Altitude (meters) 666 -20.4−20.4min
Juli2301 [7.4K]

Answer:

-6 meters.

Step-by-step explanation:

We have been given Mr. Mole left his burrow and started digging his way down at a constant rate.

We are also given a table of data as:

Time (minutes)     Altitude (meters)

6                                   -20.4

9                                   -27.6

12                                   -34.8

First of all, we will find Mr. Mole's digging rate using slope formula and given information as:

m=\frac{y_2-y_1}{x_2-x_1}, where,

y_2-y_1 represents difference of two y-coordinates,

x_2-x_1 represents difference of two corresponding x-coordinates of y-coordinates.

Let (6,-20.4) be (x_1,y_1) and (9,-27.6) be (x_2,y_2).

m=\frac{-27.6-(-20.4)}{9-6}

m=\frac{-27.6+20.4}{3}

m=\frac{-7.2}{3}

m=-2.4

Now, we will use slope-intercept form of equation to find altitude of Mr. Mole's burrow.

y=mx+b, where,

m = Slope,

b = The initial value or the y-intercept.

Upon substituting m=-2.4 and coordinates of point (6,-20.4), we will get:

-20.4=-2.4(6)+b

-20.4=-14.4+b

-20.4+14.4=-14.4+14.4+b

-6=b

Since in our given case y-intercept represents the altitude of Mr. Mole's burrow, therefore, the altitude of Mr. Mole's burrow is -6 meters.

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2 years ago
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Answer:

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Step-by-step explanation:

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PLEASE HELPP<br>given f(x)=x^3+x^2-x what is f(x)
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Answer:

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2 years ago
Raina is staining the wooden floor of a court. The court is in the shape of a rectangle. Its length is 51 feet and its width is
Furkat [3]

51*32/102=32/2=16.

Therefore, Raina will need 16 cans to cover the court.


3 0
3 years ago
What is the solution to 3x2+7x−20=0
Misha Larkins [42]

Answer:

Your answer is -4

Hope that this is helpful. Tap the crown button, Like & Follow me

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