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andrey2020 [161]
2 years ago
12

A race walker completed a 7.7 mile walk in 2.2 hours. What is the walker's speed?

Mathematics
2 answers:
GrogVix [38]2 years ago
7 0
3.5 miles per hour. You get this by dividing 7.7 by 2.2
LenKa [72]2 years ago
5 0

Answer:4.9

Step-by-step explanation:

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Help me please !!! <br><br><br><br> And thank you
Neko [114]

Answer:

804.4

Step-by-step explanation:

the formula for the volume of a cube is the side length cubed,

so:

(9.3)(9.3)(9.3) = 804.357

then round it to 804.4

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Micah is saving money for his first car his parents gave him 250 for his birthday and each week he plans on putting $40 into his
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How many can 8 go in to 18
Zinaida [17]

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8 can go into eighteen 2.25 times

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What is multiplication
Ne4ueva [31]

Answer:

Multiplication is one of the four elementary mathematical operations of arithmetic, with the others being addition, subtraction and division. Multiplication is marked as an "x." A mathematical operation performed on a pair of numbers in order to derive a third number called a product. For positive integers, multiplication consists of adding a number (the multiplicand) to itself a specified number of times. Thus multiplying 6 by 3 means adding 6 to itself three times.

Step-by-step explanation:

7 0
2 years ago
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Two sides of a triangle are 6 m and 10 m in length and the angle between them is increasing at a rate of 0.06 rad/s. find the ra
Soloha48 [4]
Since this problem talks about rates of change, then the concept of calculus is very useful. But first, let's find at least two equations in order to solve this system. The first one is the area of a triangle written as

A = 1/2 ab sin θ, where a and b are the sides that from the angle θ. So, we substitute a=6 and b=10. That makes it:
A = 1/2 (6)(10)sin θ = 30 sin θ

Now, you differentiate implicitly (both sides simultaneously) with respect to time.

dA/dt = 30 cosθ (dθ/dt)

We replace dθ/dt = 0.06 rad/s, as mentioned in the problem. Then, the rate of change of the area of the triangle when θ = π/3 rad with respect to time is

dA/dt = 30cos(π/3) (0.06)
dA/dt = 1.8  m²/s

Therefore, the rate of change of the area of the triangle is 1.8 m² per second.
8 0
3 years ago
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