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tamaranim1 [39]

3 years ago

13

I NEED HELP ASAP IM DOING IT NOW. !!!!!!!!!!!!!!!!!!!!!!! Lily likes to collect records. Last year she had 12 records in her col

lection. Now she has 15 records. What is the percent increase of her collection?

2 answers:

ratelena [41]3 years ago

7 0

Answer:

12/10 =1.2 - 1 = 0.2 x 100 = 20%

Step-by-step explanation:

Aleksandr-060686 [28]3 years ago

4 0

Answer:

45% increased.

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HELP PLEASE IT'S DUE

ololo11 [35]

Answers are in an attached photo

3 0

3 years ago

Read 2 more answers

Jan is cutting a rectangular pan of brownies.She cut them in half and then cut each of those halves in half again.She did the sa

kumpel [21]

I drew a picture!!
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Maybe you didn't.
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I like to picture things though.
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Ok, a rectangle cut in half.
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Ok, by definition of "half," just multiply the number of rectangles by 2.
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1 x 2 = 2 after cutting the brownies in half.
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2 x 2 = 4 after cutting it in half again.
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4 rectangles now!!
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Doing it the other way... pretend you are starting over from scratch.
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A new batch of brownies!
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But still pay attention to what you already cut.
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Cut down the middle the other direction.
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What's 4 x 2?
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8.
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Now, finally, we multiply the half of the half brownies.
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What's 8 x 2?
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16.
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16 slices.

7 0

2 years ago

The depth of Nathan's binder is 2 5/12 inches. what is the measurement as a decimal?

masya89 [10]

Convert to improper fraction: 2 5/12 = 29/12
Divide 29 by 12: 29/12 = 2.42

2.42 inches

6 0

3 years ago

What is the solution of this linear system? x+y=13

igor_vitrenko [27]

Answer:

The solution of the linear equation is: (6,7)

Step-by-step explanation:

This being that:

x + y = 13

1/2x + y = 10

What you do in order to find the solution is either (2 ways):

- Substitution

- Elimination

I'm sure that either way, you'll get the same thing. I used: Substitution.

To do this choose either if you want to find [x] or [y] first, then substitute it in. I will choose to find [x] first.

<h2>x + y = 13</h2><h2><u> - y </u> </h2><h2>x = 13 - y</h2>

Now substitute it into:

1/2x + y = 10

1/2(13 - y) + y = 10

1/2(13 -y) + y= 10

<h2>Then to get rid of fraction, instead of dividing, you multiply with reciprocal</h2><h2>1/2 · 2/1 (They cancel out) Leaving you with:</h2><h3 /><h3>(13 - y) 2(y) = 2(10)</h3><h3>(Everything is multiplied, except for 13 - y, because it had parenthesis to protect it.)</h3><h3>13 - y + 2y = 20</h3><h3 /><h2>13 + y = 20</h2><h2><u>- 13 - 13</u></h2><h2> <u>y = 7</u></h2><h2 /><h2>You now have your [y] for your coordinate.</h2><h2>(x, 7), now time to find your [x]</h2><h2 />

Now you substitute your [y] into your equation:

1/2x + (7) = 10

<h2>1/2x + 7 = 10</h2><h2><u> -7 = -7</u></h2><h2>1/2x = 3</h2><h2>(To get rid of fraction, multiply on both sides with reciprocal)</h2><h2>1/2 cancels out with 2/1</h2><h2>x = 2(3)</h2><h2>x = 6</h2><h2>You now have your [x] coordinate.</h2><h2 /><h2>This is your coordinate: </h2><h2>(6,7)</h2><h2></h2>

4 0

3 years ago

The parabola y=<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D" id="TexFormula1" title="x^{2}" alt="x^{2}" align="absmiddle" class

oksano4ka [1.4K]

Y=(x-h)^2+k where (h,k) is the vertex

So, equation of new parabola is:

y=(x+1)^2+7

7 0

2 years ago