3 years ago

Mary is going for a walk. She walks 12.5 miles in 5 hours. What is her speed

Mathematics

1 answer:

xz_007 [3.2K]3 years ago

3 0

To find her speed, divide the total distance by the total time:

12.5 miles / 5 hours = 2.5 miles per hour.

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How many inches is 35 yards?

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Answer:

1260 inches

Step-by-step explanation:

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1 year ago

Prove that for all integers a and b, if a mod 7 = 5 and b mod 7 = 6 then ab mod 7 = 2.

sergiy2304 [10]

Hello :
if : a ≡ 5 ( mod 7) ....(1)
b ≡ 6 ( mod 7) ...(2)
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3 years ago

Tell whether a=−5 is a solution of a≤0.

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Step-by-step explanation:

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3 years ago

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Gre4nikov [31]

0.41, 0.5, 3/5

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3 years ago

What is the distance between (1,-5) and (-3,6)

spin [16.1K]

Answer:

$\large\boxed{\sqrt{137}}$

Step-by-step explanation:

The formula of a distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

We have the points (1, -5) and (-3, 6). Substitute:

$d=\sqrt{(6-(-5))^2+(-3-1)^2}=\sqrt{11^2+(-4)^2}=\sqrt{121+16}=\sqrt{137}$

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