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nydimaria [60]
3 years ago
13

Samantha Cruz has 200 coins (quarters and dimes). She has $44.00. Write a system of equations and determine how many quarters= _

____ and dimes=____ she has
Mathematics
1 answer:
marishachu [46]3 years ago
4 0

Answer:

Step-by-step explanation:

how many coins:  d + q = 200

value of the money  .10d + .25q = 44

(ten cents for each dime and 25 cents for each quarter)

Now to solve by elimination:

1)multiply the first row by -10 so that the dimes will cancel out.

-.10d + -.10 q = 20   (don't do anything to second row)

.10d +  .25q = 44

2) now add those up.

the dimes cancel out.

.15 q = 64

that does not divide evenly so there is something wrong with this problem.

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The result of which expression will best estimate the actual product
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Answer:

The answer is,

(-1) \times \frac {1}{2} \times (-1) \times (1)

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The given product is,

\frac {-4}{5} \times \frac{3}{5} \times \frac{-6}{7} \times \frac {5}{6}

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Now, the first product to compare is,

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The second product to compare is,

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