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lisabon 2012 [21]
3 years ago
10

Need help with this please

Mathematics
1 answer:
KonstantinChe [14]3 years ago
7 0

Answer:

72 cent

Step-by-step explanation:

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Describe several real world situations can be modeled by equations of the form Y equals MX plus be or Y equals MX explain how th
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The linear equation represents y = mx + b describes several real world situations such as

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<u>Step-by-step explanation</u>:

Linear equations  y = mx + b.  

m is your rate of change.

b is your constant. This is the initial value of y. The value of y when x is 0.

Finally, y is the thing that depends on x.

Oh right, examples:  

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total cost = 25(cartridges I buy) + 100 or y = 25x + 100

  • I get a $100 iTunes gift card for my birthday and then start buying $1 songs. The relationship between the number of songs I buy and how much is left on the card

amount left on card = -$1(songs bought) + 100 or y = -x +100

5 0
3 years ago
Which of the following is equal to (3x/5 -7) +7 ?
diamong [38]
3x/5.. because when the bracket opens then the -7 and +7 get cancelled..
3 0
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Describe in a couple of sentences what key features you can identify from the graph of a quadratic equation?
bezimeni [28]
From the graph of a quadratic equation, you can find:
The roots. These are the points where the graph crosses the x-axis, and is the solution of the quadratic equation when y=0. Usually, there are either two or zero.
The coefficient of the leading term. In the quadratic equation y= ax^2 + bx + c,
the parabola points upward if a is positive, and downward if a is negative. 
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Donald can type 240 words in 6 minutes. How long will it take him to type a 1000-word essay if he types at the same rate? (Pls I
lukranit [14]

Answer:

a : 6

b : 240

c : 166.7 or 166.666666667

Step-by-step explanation:

Hope this helps!

4 0
3 years ago
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