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Lorico [155]
2 years ago
7

You have a coin collection of nickels and dimes containing 63 coins. If you have

Mathematics
1 answer:
xxTIMURxx [149]2 years ago
6 0

Answer: 25 nickels

Step-by-step explanation:

EQUATIONS:

quantity: n + d = 63

value: 5n + 10d = 505

-------------------------

Divide thru the 2nd equation by 5 to get:

n + 2d = 101

----------------

Subtract that from the 1st equation:

-d = -38

d = 38 (# of dimes)

---------------

Substitute that into n+d=63 to solve for "n":

n + 38 = 63

n = 25 (# of nickels)

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I NEED HELP ASAP!!
zzz [600]

Answer:

C. {-5,-4, -3, 1, 2, 5}

Step by step explanation:

We have been given a graph and we are asked to find the domain of the relation represented in graph.

We can see that our graph is a series of unconnected points. Our function represents integer values. So we can see that our graph represents a discrete function.    

Since we know that domain of a discrete function is set of inputs values consisting of only certain values in an interval. .

The set of first value from each of the given points would made domain of our function. Upon looking at our graph we can see that domain of our function is -5,-4, -3, 1, 2 and 5.  

Therefore, option C is the correct choice.


7 0
2 years ago
Round .1325 to nearest thousandths
m_a_m_a [10]
So,

If the number in the ten-thousandth's place is greater than or equal to 5, then round up.  If not, round down.

0.1325: Note the 5.  We round up.

0.1325 --> 0.133
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