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bekas [8.4K]
3 years ago
8

Erica can run 1/6 of a kilometer her school is 3/4 of a kilometer away from her home at this this speed how long would it take e

rica to run home from school
Mathematics
1 answer:
shepuryov [24]3 years ago
5 0

Answer:

4 minutes 30 seconds

Step-by-step explanation:

Given:

Erica can run 1/6 of a kilometer in one minute.

Her school is 3/4 of a kilometer away from her home.

Question asked:

How long would it take Erica to run home from school = ?

Solution:

As here distance is  given and also speed is given, we will find time taken to run from home to school by using,

Speed=\frac{Distance}{Time} \\ Time =\frac{Distance}{Speed} \\

         =\frac{3}{4} \div\frac{1}{6} \\\\ =\frac{3}{4} \times\frac{6}{1} \\\\ =\frac{18}{4} \\ \\ =\frac{9}{2} \\ =4.5 \ minutes

Therefore, it takes 4 minutes 30 seconds Erica to run home from school.

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A helicopter leaves bristol and flies due east for 10 miles.Then the helicopter flies 8miles north before landing. What is the d
DedPeter [7]

Answer:

The distance of the helicopter from the bristol is approximately 1<u>2.81 miles</u>

Step-by-step explanation:

Given:

Helicopter flies 10 miles east of bristol.

Then the helicopter flies 8 miles North before landing.

To find the direct distance between the helicopter and bristol.

Solution:

In order to find the distance of the helicopter from the bristol before landing, we will trace the path of the helicopter

The helicopter is first heading 10 miles east of bristol and then going 8 miles due north.

On tracing the path of the helicopter we find that the direct distance of the helicopter from the bristol is the hypotenuse of a right triangle formed by enclosing the path of the helicopter.

Applying Pythagorean theorem to find the hypotenuse of the triangle.

Hypotenuse^2=Short\ leg^2+Shortest\ leg^2

Hypotenuse^2=10^2+8^2

Hypotenuse^2=100+64\\Hypotenuse^2=164

Taking square root both sides.

\sqrt{Hyptenuse^2}=\sqrt{164}\\Hypotenuse = 12.81\ miles

Thus, the distance of the helicopter from the bristol is approximately 12.81 miles

6 0
3 years ago
A student solves the equation for v. Start with the original equation. Use the square root property. Use the division property o
LekaFEV [45]

Answer:

the answer is d

<em>The square root property should have been applied to both complete sides of the equation instead of to select variables. </em>

<em />

Step-by-step explanation: i just took the test on edge

5 0
3 years ago
Read 2 more answers
Dani uses the table to help her convert measurements when she is sewing
Aleks [24]
The first thing we should do is see what relationship we have:
 Table is feet to yards 3-1
 a. Describe the relationship between the number of feet and the number of yards
 That is to say:
 1Yarda = 3 feet
 b. Write an expression for the number of yards in f feet
 Let
 y = Yard
 f = feet
 We have the following expression for the conversion:
 y = (1/3) f
 c. Find the number of yards in 63 feet 
 For this case we must substitute in the expression found the value of f = 63.
 y = (1/3) f
 y = (1/3) (63)
 y = 21
 answer:
 1Yarda = 3 feet
 y = (1/3) f
 y = 21
4 0
3 years ago
Please help I'm confused. It's finding a function
shepuryov [24]
Easy, that is the slope from (2,f(2)) to (3,f(3))

remember that the slope between the points (x1,y1) and (x2,y2) is
(y2-y1)/(x2-x1)

find f(2) and f(3)
f(2)=2²+6(2)+5=4+12+5=21
f(3)=3²+6(3)+5=9+18+5=32

so the slope from (2,21) to (3,32) is (32-21)/(3-2)=11/1=11

answer is 11
3 0
4 years ago
Pls help fast need ASAP
barxatty [35]

Answer: tan62 = 10/x

Step-by-step explanation: Let me know if you need an explanation.

3 0
3 years ago
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