3 years ago

Hi! Please help me and explain!

Mathematics

1 answer:

Orlov [11]3 years ago

3 0

Distance formula sqrt((x2-x1)^2 + (y2-y1)^2))

Sqrt((4-2)^2+(-7+3)^2)

Sqrt(2^2+4^2)

Sqrt(4+16)

Sqrt(20)

2sqrt5.

The second choice is the correct answer.

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Miguel biked 14 km in the same amount of time that linda hiked 10 km. Miguel's rate was 4 km/h more than linda's. How fast did e

matrenka [14]

The first thing we must do is define a variable.

We have then:

x: Linda's speed.

Then, by definition, the time traveled is equal to the distance between the velocity.

We have then:

For Linda:

$t = \frac{10}{x}$

For Miguel:

$t = \frac{14}{x + 4}$

Then, since time is the same, then:

$\frac{10}{x} = \frac{14}{x + 4}$

Clearing Linda's speed we have:

$10 (x + 4) = 14x$

$10x + 40 = 14x$

$40 = 14x-10x$

$40 = 4x$

$x = \frac{40}{4}$

$x = 10$

Then, Miguel's speed is:

$x + 4 = 10 + 4 = 14$

Answer:

Linda's speed is 10 Km/h

Miguel's speed is 14 Km/h

3 0

3 years ago

I need help!!!

Vlad [161]

Answer:

i think it is B

Step-by-step explanation:

i am not 100% sure

8 0

3 years ago

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sometime after passing a truck stop 300 miles from the start of her trip Cora's hybrid car ran out of gas assuming that the tank

Scrat [10]

Answer: 7.5 gallons

Step-by-step explanation:

300 divided by 40 is 7.5

Mark me as brainliest if this helps!

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3 years ago

Here is a list of numbers:<br>-16, -10, 10, -12, -11, -18, -12 ,20 ,-20 ,16<br>State the median.

aleksklad [387]

Answer:

i think -14.5

Step-by-step explanation:

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What is the greatest common factor of 24 30 and 42

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List the factors of 24,30, and 24. Factors of 24: 1,2,3,4,6,8,12,24. Factors of 30: 1,2,3,5,6,10,15,30. Factors of 42: 1,2,3,6,7,14,21,42. The highest number that all of these numbers is 6. Therefore, the greatest common factor of GCF of 24,30, and 42 is 6.

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3 years ago

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