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3 years ago

Does anybody know the answer to this equation??

Mathematics

2 answers:

Vlad [161]3 years ago

6 0

Answer:it’s the 3rd one

Step-by-step explanation:

irina [24]3 years ago

4 0

Answer:

Step-by-step explanation:

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the tempature rises 36° F. each hour the tempature rises 6°F. write an equation that models the tempature y, in degrees Fahrenhe

aleksklad [387]

Since the temperature starts at 40 degrees F at sunrise and increases 4 degrees every hour afterward, we can begin our equation.

If you visualize the graph, the y-axis (left side) will denote the degrees and increase slightly every hour. The x-axis (at bottom) will show the hours as they pass by. In slope-intercept form, the b must be 40 degrees, since this is where we start, and the slope m must be 4, since this is the amount the temperature is changing every hour.

Therefore y=4x+40

This equation will tell you the temperature (y) at any hour (x).

5 0

3 years ago

On Friday and Saturday, there were a total of 200 cars in the parking lot of a movie theater. On Friday, 120 cars were in the pa

denpristay [2]

Answer:

(A) 40%

(B) 60%

Step-by-step explanation:

Given:

Total number of cars = 200

Cars in parking lot on Friday = 120

Total number of cars = Total cars on Friday + Total cars on Saturday.

⇒ 200 = 120 + Total cars on Saturday.

⇒ Total cars on Saturday = 200 - 120 = 80

So, 80 cars were in parking lot on Saturday.

(A)

Percentage of cars in parking lot on Friday is given as:

$=\frac{\textrm{Cars in parking lot on Friday}}{\textrm{Total cars parked}}\times 100\\\\=\frac{120}{200}\times 100\\\\=\frac{120}{2}=60\%$

Therefore, 60% of the cars were in the parking lot on Friday.

(B)

Now, since 60% of the cars were parked on Friday, the remaining percent will be on Saturday.

Therefore, percentage of cars in parking lot on Saturday = 100% - 60% = 40%. This can be verified with the same formula used in part (A).

$=\frac{\textrm{Cars in parking lot on Saturday}}{\textrm{Total cars parked}}\times 100\\\\=\frac{80}{200}\times 100\\\\=\frac{80}{2}=40\%$

6 0

3 years ago

PLEASE HELP !! EXPERIMENTAL PROBABILITY QUESTION :(

Whitepunk [10]

Answer:

6/10 is the answer

Step-by-step explanation:

hope it helps!!!

7 0

3 years ago

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A tractor costs $12,250 and depreciates in value by 6% per year. How much will the tractor be worth in 6 years?

GaryK [48]

Answer:

Step-by-step explanation:

8 0

3 years ago

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Louise calculated the height of a cylinder that has a volume of 486 pi cubic centimeters and a radius of 9 centimeters. Her work

Bumek [7]

Step-by-step explanation:

Louise calculated the height of a cylinder that has a volume of 486 pi cubic centimetres and a radius of 9 centimetres.

The formula for the volume of cylinder is :

V = B × h

B is area of base of cylinder

$B=\pi r^2$

i.e.

$V=\pi r^2 h$

Substituting given values,

$486\pi =\pi (9)^2 \times h$

$\pi$ will cancel out from both sides.

$486= (9)^2 \times h\\\\h=\dfrac{486}{81}\\\\h=6\ cm$

She forgets to cancel down $\pi$ from both sides. So, she get height as $6\pi\ cm$ . So, in the $\pi$ should have canceled, making the correct answer 6 cm.

3 0

4 years ago

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