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vfiekz [6]
2 years ago
11

(20 points will get brainliest)

Mathematics
2 answers:
Nina [5.8K]2 years ago
8 0

Answer:

y(x)=19*x

Step-by-step explanation:

Given the height of <em>6 </em>DVD cases, you can know the height of a <em>single</em> DVD case, by dividing the total height, in the number of cases (\frac{114mm}{6} = 19mm for this problem).

Now, knowing the height of a <em>single</em> DVD case (19mm), you can think the expression in this way: <em>If I already know the height of a single case, the height of any number of cases will be the result of multiplying the height of the case by the number of cases I want to stack.</em>

As the problem states, x is the number of cases in the stack, so, multiply the height of a single case for the number of cases (x).

This will result in the expression: y(x)=19*x

To know the height of a stack of 13 cases, just replace x=13 in the equation you just figured:  y(13)= 19* (13) = 247 , but don't forget the unit is mm, so the final result is <u>247 </u><u><em>mm.</em></u>

Mama L [17]2 years ago
4 0
Y = 19x

The height of 13 would be 247mm
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hope this helps you.

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Which of the following are composite numbers
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3 years ago
A bolt has 6 1/2 turns per inch. How many turns would be in 2 1/2 inches of threads?
Reika [66]

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Given, number of turns a bolt has = 16 1/2 turns per inch.

per inch bolt turns = 16 1/2 =33/2

how many turns would be there in 2 1/2 inches of threads = ?

Threads Per Inch, or TPI, is a measure of how many threads are found in one inch along a fastener's length. American fasteners are the only ones that employ TPI. Typically, the thread count is higher for smaller fasteners since they have finer threads. Just as the name implies, the Threads Per Inch (TPI) refers to the number of threads that run the length of a screw for one inch. The TPI of a screw can be easily calculated by simply counting the threads and dividing the total length.

so, 5/2 inches bolt turns =33/2 x 5/2

=165/4

hence 41 1/4 turns

Therefore, 2 1/2 inches of threads have 41 1/2 turns.

Learn more about Conversions here:

brainly.com/question/16851332

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