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Yuri [45]
3 years ago
12

In 5 seconds an athlete runs 40 feet. what is the average speed in miles per hour?​

Mathematics
2 answers:
OverLord2011 [107]3 years ago
7 0

Answer:

Below in bold.

Step-by-step explanation:

He is running at 40/5 = 8 feet per second.

This is 8 * 3600 feet per hour as there are 3600 seconds in an hour.

In miles this is 8*3600 / 5280 miles ( there is 5280 feet in a mile.

So it is 28800/5289

= 5.45 miles per hour.

NikAS [45]3 years ago
6 0

Answer:

12 x 40 = 480 feet per minute.

480 x 60 = 28800 feet per hour.  

28800/5280 = 5.45 miles per hour.

Hope that helps.Thank you!!!

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Answer:

40% decrease

Step-by-step explanation:

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3 years ago
the sum of ages of father and his son is 60 years.if the difference between their ages is 40 years then find the age of father a
cluponka [151]

Answer:

Father's age is 50, Son's age is 10

Step-by-step explanation:

X+Y=60

X-Y= 40

Let X represent the Father's age while Y represents the Son's age;

therefore, from the two equations, the value of X is

X= 60-Y

X= 40+Y  then putting in the value of x

(40+Y) + Y= 60,

40+2Y=60

2Y=60-40 =20

Y= 10,

Now that we know the value of Y, we can get the value of x

If X+Y=60, then

X+10=60,

X=60-10,

X= 50

8 0
3 years ago
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If an aunt has six legs how many legs do you eight ants have
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1 ANT = six legs
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5 0
3 years ago
The perimeter of the rectangle is 146 units. What is the length of the longer side?
NeTakaya

we know that

the perimeter of the rectangle is equal to

P=2W+2L

where

P is the perimeter of the rectangle

W is the width of the rectangle

L s the length of the rectangle

In this problem

P=146\ units \\ W=2x\\ L=3x+3

Substitute the values in the formula above

P=2W+2L\\ 146=2*(2x)+2*(3x+3)\\ 73=2x+3x+3\\ 5x=70\\ x=14\ units

W=2x=2*14=28\ units\\ L=3x+3=3*14+3=45\ units

therefore

the answer is

the length of the longer side of the rectangle is equal to 45\ units

7 0
3 years ago
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Given log Subscript 3 Baseline 2 almost-equals 0. 631 and log Subscript 3 Baseline 7 almost-equals 1. 771, what is log Subscript
kari74 [83]

You can use the properties of logarithm to get to the solution.

The approximate value for given term is given by

log_3(14) \approx 2.402

<h3>What is logarithm and some of its useful properties?</h3>

When you raise a number with an exponent, there comes a result.

Lets say you get

a^b = c

Then, you can write 'b' in terms of 'a' and 'c' using logarithm as follows

b = log_a(c)

Some properties of logarithm are:

log_a(b) = log_a(c) \implies b = c\\\\\log_a(b) + log_a(c) = log_a(b \times c)\\\\log_a(b) - log_a(c) = log_a(\frac{b}{c})

<h3>Using the above properties</h3>

log_3(2) + log_3(7) = log_3(2 \times 7) = log_3(14)\\\\0.631 + 1.771  = log_3(14)\\\\log_3(14) = 2.402

Thus,

The approximate value for given term is given by

log_3(14) \approx 2.402

Learn more about logarithm here:

brainly.com/question/20835449

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2 years ago
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