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Leno4ka [110]
3 years ago
6

The ratio of ebooks to novels is 4:5. if there are 32 ebooks how many novels are there?

Mathematics
1 answer:
12345 [234]3 years ago
4 0
<h3>Answer:  40 novels</h3>

================================================

Work Shown:

n = number of novels

(32 ebooks)/(n novels) = 4/5

32/n = 4/5

32*5 = n*4 ............ cross multiply

160 = 4n

4n = 160

n = 160/4 .............. dividing both sides by 4

n = 40

There are 40 novels.

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Answer:

Step-by-step explanation:

So there are two types of variables we need to focus on, the first is the dependent variable, the second is the independent variable ( which is the one in question).  You asked about it in relation to mathematics, although even across the board, in science they both really mean the same thing. Here's an example, say you are taking a test, and the rubric for grading the test is 5 points (p) for every question (q) answered correctly. So given that information you can conclude that (p) is equal to 5 x the amount of questions you got right (p = 5q). The amount of points in this equation relies on how many questions you get right, you can't logically say that question (q) is equal to 5 points (p), because the questions don't depend on the points, the points depend on the amount of questions you get right. So that means since the points (p) depend on the # of questions you answered correctly, it is the dependent variable, there for by process of elimination you're independent variable is (q) since they don't rely on the points, the points rely on the questions. It all boils down to how well you can recognize this, and how complicated your question is, but hopefully this provided some insight.

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2 years ago
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What is the answer to Q=1/2p+15, for p​
Mazyrski [523]

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Step-by-step explanation: Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

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Solve   p-2q+30  = 0

we have an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

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In this formula :

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x tells us how far along

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b is the Y-intercept i.e. where the line crosses the Y axis

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Notice that when p = 0 the value of q is 15/1 so this line "cuts" the q axis at q=15.00000

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When q = 0 the value of p is -30/1 Our line therefore "cuts" the p axis at p=-30.00000

 p-intercept = -30/1  = -30.00000

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7 0
3 years ago
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Answer:

Step-by-step explanation:

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3 years ago
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MAXImum [283]
Hey there, Lets solve your question together 

Question - <span>What is 400 in Expanded form ? 
</span>
We know that expanded form is a spread out way to write a number by showing the value of each individual digit that contributes<span> to make the full number. 
</span>
Lets use an example to show expanded form

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Now lets solve for the number 400 in expanded form. 

The number "4" is in the hundreds place 

The number "0" is in the tenths<span> place 
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<span>The number "0" is in the One's place 

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Answer:

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Therefore, Katrina drinks 56 cups of water in a week

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2 years ago
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