The monthly membership fee for an online television

Mathematics

1 answer:

Makovka662 [10]2 years ago

5 0

Jill rented (B) 2 movies that month.

<h3>What is an equation?</h3>

An equation is a formula in mathematics that expresses the equality of two expressions by connecting them with the equals sign =.
The word equation and its cognates in other languages may have subtly different meanings; for example, in French, an équation is defined as containing one or more variables, whereas in English, an equation is any well-formed formula consisting of two expressions linked by an equals sign.

To find how many movies did Jill rent online that month:

The equation for the monthly bill when m number of movies are rented per month = 9.80 +1.5m.
Given, 9.80 + 1.5m=12.80
1.5m = 3
m = 2

Therefore, Jill rented (B) 2 movies that month.

Know more about equations here:

brainly.com/question/2972832

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4 years ago

Carissa also has a sink that is shaped like a half-sphere. The sink has a volume of 3000

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Answer:

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Step-by-step explanation:

a) Calculate the volume of the the cup using volume of cylinder equation: $V = \pi r^{2} h$

Where V = Volume, r=radius, and h=height. Your answer should be in cubic inches ( $in^3$ ).
You're given diameter, so use equation $d/2 = r$ to find radius.
Substituting these equations will give you: $V = \pi (d/2)^2 h$
However, the given volume of the sink is 3000 $\pi$ , meaning that you should modify your results to match this value. Do not substitute $\pi$ for 3.14..., leave it as a symbolic value. Your final V of the cup should = 37.5 $\pi$
Divide the volume of the sink by the volume of the cup. This number will be the amount of cups needed to empty it. In equation form:
$Vsink / V cup =$ # of cups.
Note the the $\pi$ will cancel each other out, so there's not need to factor that in.
b) Repeat the steps above with the new d (diameter) value.