Alison has $1.60 worth of nickels and dimes in her coin purse. She has 11 more nickels than dimes.

Mathematics

1 answer:

zimovet [89]3 years ago

8 0

32 nickles and 42 dimes

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Match the phenomenal expression on the left with the simplified version on the right

nalin [4]

Given the polynomial expression:

(y + 5)²

(y - 5)(y + 5)

Let's simplify each of the given expression:

a.) (y + 5)²

The given equation is a factor of a perfect square trinomial. For this type of expression, the following is the formula for expanding it.

$\text{ (a+b)}^2\text{ = }a^2\text{ + 2ab + }b^2$

We get,

$\mleft(y+5\mright)^2=(y)^2+2(y)(5)+(5)^2$ $(y+5)^2=y^2+10y+25$

b.) (y - 5)(y + 5)

To be able to simplify the following expression. We will be using the formula for the difference of two squares.

$(a+b)(a-b)=a^2-b^2$

We get,

$\mleft(y-5\mright)\mleft(y+5\mright)=(y)^2-(5)^2$ $(y-5)(y+5)=y^2-25^{}$

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1 year ago

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allsm [11]

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3 years ago

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Help please!!! will make brainiest

dangina [55]

Answer:

32.4

Step-by-step explanation:

14 3/5 = 14.6

14.6*6=87.6

120-87.6=32.4