We have been given that during summer, the water level of the river increased by 78 centimeters in 6 days. We are asked to find the water level increase rate in centimeters per day.

To find the water level increase rate per day, we will divide total increase by total days as:

$\text{Water level increase rate per day}=\frac{78\text{ cm}}{6\text{ days}}$

$\text{Water level increase rate per day}=\frac{13\text{ cm}}{\text{ day}}$

Therefore, the water level increase rate is 13 centimeters per day.

5 0

3 years ago

The area of circle Z is 64. What is the value of r? r = ____ft

andrezito [222]

Given the circle has a radius of 64, to get the value of the radius,r we shall proceed as follows.
Area=πr^2
Thus;
64=πr^2
64/π=r^2
r^2=20.3718
r=sqrt(20.3718)
r=4.5135
Therefore the length of radius,r=4.5135 units

5 0

3 years ago

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Glen has a total of 16 pens. 6 of the pens are blue, and the rest are red. what is the ratio of blue pens to red pens?

mote1985 [20]

3:5

The ratio before simplifying was 6:10

6:10 is the same as 3:5

5 0

3 years ago

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Given sets A, B, C, and U, find the elements in A - B'.

SpyIntel [72]

Step-by-step explanation: