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3 years ago

The fastest a human has ever run is 27 miles per hour how many miles per minute did the human run

Mathematics

1 answer:

garri49 [273]3 years ago

3 0

Ok so all we need to do is divide 27mph by 60 to convert the mph to miles per minute.

27/60= .45 miles per minute

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Chang runs each lap in 5 minutes. He will run at the most 30 minutes today. What are the possible numbers of laps he will run to

Ipatiy [6.2K]

Answer:

Step-by-step explanation:

all you have to do is 30 / 5 what equals 6

4 0

3 years ago

Una piscina rectangular de 15 metros de largo por 9 metros de ancho està rodeada por un

stira [4]

Answer: 2 meters.

Step-by-step explanation:

Let w = width of the cement path.

Dimensions of pool : Length = 15 meters , width = 9 meters

Area of pool = length x width = 15 x 9 = 135 square meters

Along width cement path, the length of region = $2w+15$

width = $2w+9$

Area of road with pool = $(2w+15) (2w+9)$

$= 4w^2+30w+18w+135\\\\=4w^2+48w+135$

Area of road = (Area of road with pool ) -(area of pool)

$\Rightarrow\ 112 =4w^2+48w+135- 135\\\\\Rightarrow\ 112= 4w^2+48w\\\\\Rightarrow\ 4 w^2+48w-112=0\\\\\Rightarrow\ w^2+12w-28=0\ \ \ [\text{Divide both sides by 4}]\\\\\Rightarrow\ w^2+14w-2w-28=0\\\\\Rightarrow\ w(w+14)-2(w+14)=0\\\\\Rightarrow\ (w+14)(w-2)=0\\\\\Rightarrow\ w=-14\ or \ w=2$

width cannot be negative, so w=2 meters

Hence, the width of the road = 2 meters.

8 0

3 years ago

Type the correct answer in the box. Log14/13+log11/5-log22/15= log

MArishka [77]

your answer would be x=21/13

When the logs have the same base: logb(f(x)) = logb(g(x)) --> f(x) g(x)

if im correct please mark brainliest :)

4 0

3 years ago

Read 2 more answers

Graph each function. State the domain and range.

kondaur [170]

Answer:

Just put it in Geogebra classic. It's an app that helps very much with functions!

7 0

2 years ago

Solve for y <br> 7+4y=7-5y+54

Orlov [11]

Answer:

Step-by-step explanation:

7+4y=7-5y+54

Collecting like terms

4y + 5y = 7 - 7 + 54

9y = 54

y = 54/9

y = 6

6 0

2 years ago