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3 years ago

Which speed is the fastest?

2 answers:

8 0

1/3 of an hour is 20 minutes so 20 divided by 4 is 5 minutes per 1 mile.

1/3 of a mile is 4 hours so a full mile would be 3 times 4 which is 12 so every 12 hours is 1 mile.

1/2 a mile takes 3 hours and 2 times 3 is 6 so every 6 hours is 1 mile.

A. 5 minutes per mile

B. 12 hours per mile

C. 6 hours per mile

The correct choice is A.
I hope this helped you

anyanavicka [17]3 years ago

7 0

It’s A . 4 miles in 1/3

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E(5,3) and F (2,-1) are two vertices of a square EFGH and H is in the x-axis .Find the coordinates of H and G. Please need answe

timurjin [86]

Answer:

coordinates of H = (1, 0)

Coordinates of G = ( - 3.6, -2) or (5.6, -2)

Step-by-step explanation:

E(5,3) and F (2,-1) are two vertices of a square EFGH and H is in the x-axis.

Let the coordinates of H is (x, 0) and G is (a, b).

The length of side EF is

$EF = \sqrt{(5 -2)^2 + (3 +1)^2} = 5$

So,

$EH = \sqrt{(5 -x)^2 + (3 -0)^2} = 5\\\\(5 -x)^2+ 9 = 25\\\\5 - x = 4\\\\x = 1$

And

$GH = \sqrt{(a -x)^2+ b^2} = 5\\\\(a -1)^2+ b^2 = 25\\\\a^2 + b^2 + 1 - 2 a = 25\\\\a^2 + b^2 - 2a = 24 .... (1)$

Now

$FG = \sqrt{(a -2)^2+ (b +1)^2} = 5\\\\(a -2)^2+ (b+1)^2 = 25\\\\a^2 + b^2 + 2b - 2 a = 20\\ ..... (2)$

Solving (1) and (2)

b = - 2 ,

$a = \frac{2 \pm\sqrt{4 + 80}}{2}\\\\a = \frac{2 \pm 9.2}{2}\\\\a = - 3.6, 5.6$

3 0

3 years ago

Jon weighs 148lbs and hopes to gain 2lbs a week. Matt weights 193lbs and hopes to lose 1lb a week. How many weeks until they wei

irina [24]

Let x be the number of weeks it takes for Jon and Matt to have the same weight.

We have an equation: 148+ 2x= 193 -1x
⇒ 2x+1x = 193-148
⇒ 3x= 45
⇒ x= 45/3
⇒ x= 15

It takes 15 weeks for Jon and Matt to have the same weight~

5 0

3 years ago

Solve for x. round to the nearest tenth of a degree, if necessary.

photoshop1234 [79]

Answer: 46.3

Step-by-step explanation:

Tan = opposite/adjacent

Tan -1 =6.9/6.6

x=46.27

x=46.3

4 0

2 years ago

I need help with this please help me

Katena32 [7]

I need help with this too i dont know the process

7 0

3 years ago

Mrs. Reid is going on a trip. She has 9 books that she hasn't read yet, but she wants to bring only 3 on the trip. In how many w

riadik2000 [5.3K]

I am positive it is 27. Really you just have to read carefully. 9 books and she wants to bring 3 only You cant add it thats dumb.

Cant Subtract because your answer wouldn't even be the options.

Dividing, the answer would be 3 so no

Multiplication is apprentely the way to go.

9 times 3 is 27

Answer is A.

I may be wrong but thats what I got

Brainliest if satisfied

Would help a lot!

7 0

3 years ago

Read 2 more answers