A boy has 11 coins in dimes and quarters. Their value is $1.70. How many of each does he have?
1 answer:
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Answer:
1.
2. not completely sure but i think its
3.x = 2 i √ 5 , − 2 i √ 5
4.x = − 9 ± √ 73 /2
5. Im not sure...
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the question in English
Mateo will reproduce a photo measuring 5 cm per side on a scale of 3/4
How much will the square side of the copy measure?
Will the size of the copy be larger or smaller than the original?
we know that
the scale factor is equal to
Let
x----------> the original length side
y--------> the copy length side
we have that
substitute the values
therefore
<u>the answer Part a) is </u>
the length side of the copy measure is
Part b)
we know that
the size of the original photo is------>
the size of the copy is------>
so
therefore
<u>the answer part b) is</u>
The size of the copy be smaller than the original