A flood a creek's water level changes by −4 7/10 feet in 2 hours. What is the average change in the creek's water level per hour
1 answer:
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Answer:
The saving of all three person are
The Pedro's saving is $ 30
The Michael's saving is $ 10
The Kevin's saving is $ 90
Step-by-step explanation:
Given as :
The three person namely Michael , Pedro , Kevin
The total saving of all together = $ 130
Let The Michael's saving = $ M
The Pedro's saving = $ P
The Kevin's saving = $ k
I.e Michael's saving + Pedro's saving + Kevin's saving = $ 130
Or, M + P + K = $ 130
again ,
Kevin saved 3 times more than Pedro
I.e K = 3 × P
And , Michael save $ 20 less than Pedro
I.e M = P - $ 20
Now
∵ M + P + K = $ 130
or, ( P - $ 20) + P + 3 × P = $ 130
Or, 5 P - $ 20 = $ 130
Or, 5 P = $ 130 + $ 20
Or, 5 P = $ 150
∴ P = $
I.e P = $ 30
So The Pedro's saving = P = $ 30
And
M = P - $ 20
∴, M = $ 30 - $ 20
I.e M = $ 10
So, The Michael's saving = M = $ 10
Similarly
K = 3 × P
∴ k = 3 × $ 30
I.e K = $ 90
So, The Kevin's saving = k = $ 90
Hence The saving of all three person are
The Pedro's saving is $ 30
The Michael's saving is $ 10
The Kevin's saving is $ 90
Answer
Answer:
Rounded to the nearest tenth, the length of the missing side is 5.4 in.
Step-by-step explanation:
According to the Pythagorean theorem, , where c is the length of the hypotenuse (the longest side), a and b are the lengths of the other two sides. We can use this to solve for the length of the hypotenuse of the right triangle shown in your question (the missing side):
This simplifies to . Now to solve for c (the length of the hypotenuse), we just take the square root of both sides of the equation and solve like so:
This simplifies to c≈5.4 in.
The general equation for computing the circumference of a circle is 
, where C is the circumference, and d is the diameter. (You might also see the equation as 
where r is the radius, because 
)
Computing the circumferences of the two circles, we get:
.
To calculate the ratio of two numbers, we can divide one by the other. You can look at this as "How many times does the denominator fit in the numerator?"
So the circumference of the complex impact crater is 2 times greater than the circumference of the simple impact crater.
Computing the circumferences of the two circles, we get:
To calculate the ratio of two numbers, we can divide one by the other. You can look at this as "How many times does the denominator fit in the numerator?"
So the circumference of the complex impact crater is 2 times greater than the circumference of the simple impact crater.