How many minutes does it take Devon to travel 10 miles at 40 miles per hour?

Mathematics

1 answer:

Zolol [24]3 years ago

7 0

It would be 15 minutes.

10/40 is 1/4, and 1/4 of an hour would be 15 minutes.

There ya go :)

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geniusboy [140]

Answer:

Step-by-step explanation:

$\frac{4}{5} + \frac{2}{5} = \frac{6}{5} \\Simple make it improper, resulting in answer A$

Hope this helps!

4 0

2 years ago

Can someone please explain how to do this.

lutik1710 [3]

Set the to equal:

x^2 - 4x+4 = 2x-4
solve for X

subtract 2x from each side:
x^2 -6x + 4 = -4

subtract 4 from each side:

x^2 -6x = -8

add 8 to both sides:

x^2 -6x +8 = 0

factor the polynomial:

x = 4 and x = 2

using the line equation replace x with 2 and 4 and solve for y

y = 2(2) - 4 = 0
y = 2(4)-4 = 4

so the 2 points the line crosses the curve is (2,0) and (4,4)

using those 2 points you can calculate the length:
distance = sqrt((x2-x1)^2 +(y2-y1)^2

distance = sqrt( (4-2)^2 + (4-0)^2)

distance = sqrt (2^2 + 4^2)
distance = sqrt (4+16)
= sqrt 20
= 2 sqrt(5) EXACT LENGTH

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3 years ago

my ones digit is 0. my tens digit is 7 more than my ones digit. my hundreds digit is 6 more than my ones digit. i am the number

OleMash [197]

The answer is the number 670

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3 years ago

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I need the answers for 1 a-d pleas

DaniilM [7]

We want to find a fraction that is between

$\frac{1}{4}\:and\:\frac{1}{2}$