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3 years ago

Martin ran 6.5 miles in one hour. At that speed, how many miles will he three hours?

Mathematics

2 answers:

NNADVOKAT [17]3 years ago

7 0

ANSWER: Martin will run 19.5 miles in 3 hours.

STEP-BY-STEP EXPLANATION: 6.5 x 3 = 19.5

solong [7]3 years ago

6 0

Answer:

19.5 miles

Step-by-step explanation:

6.5 mph means that each hour, he runs 6.5 miles.

So you already know how much he runs per hour.

6.5 mph x 3 h = 19.5mi

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AB = 3 + x

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Answer:

Option A) 4, 2

Step-by-step explanation:

We are given that quadrilateral ABCD is a parallelogram with sides:

$AB = 3 + x\\DC = 4x\\AD = y + 1\\BC = 2y$

Since the opposite sides of a parallelogram are equal, we can write:

$AB = DC\\AD=BC$

Equating the sides we get,

$\Rightarrow 3+x = 4x\\4x-x = 3\\3x = 3\\x = 1\\\Rightarrow y + 1 = 2y\\y = 1$

Putting the values of x and y, we get:

$AB = 3 + x =4\\DC = 4x =4\\AD = y + 1=2\\BC = 2y=2$

Thus, the lengths of the opposite side pairs is 4,2.

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