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Zarrin [17]
3 years ago
8

Mary lives in Phoenix. she's planning to take her relatives on trips to different parts of the state. the table below shows the

distances from her home to each destination. she found out that it's 79 miles from Flagstaff to the grand canyon.

Mathematics
1 answer:
matrenka [14]3 years ago
6 0
It's 233 miles to the Grand Canyon from Phoenix... hope thats what you were looking for :)
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Which number can each term of the equation be multiplied by to eliminate the decimals before solving?
Sati [7]
Ok...

5.6 = 56/10 = 560/100

1.1 = 11/10 = 110/100

0.12 = 12/100

--------------

\frac { 560 }{ 100 } j-\frac { 12 }{ 100 } =4+\frac { 110 }{ 100 } j\\ \\ \\ 100\times \left( \frac { 560 }{ 100 } j-\frac { 12 }{ 100 }  \right) =\left( 4+\frac { 110 }{ 100 } j \right) \times 100\\ \\ 560j-12=400+110j\\ \\ 560j-110j=400+12\\ \\ 450j=412\\ \\ j=\frac { 412 }{ 450 }

So, the answer is: 100

You could multiply both sides of the equation by 100 to get the value of (j) quickly.
6 0
3 years ago
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X2-3xy-5xy-7y2+4x2+8y2
Zepler [3.9K]

For this case we must simplify the following expression:

x ^ 2-3xy-5xy-7y ^ 2 + 4x ^ 2 + 8y ^ 2

We must add similar terms taking into account that:

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(x ^ 2 + 4x ^ 2) + (- 3xy-5xy) + (- 7y ^ 2 + 8y ^ 2) =\\5x ^ 2-8xy + y ^ 2

Thus, the simplified expression is:

5x ^ 2-8xy + y ^ 2

Answer:

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4 0
3 years ago
What is the equation of a line that passes through points (0, 4) and (-4, -8)?
Fed [463]
Slope = (-8 - 4)/(-4 -0) = -12/-4 = 3

y-intercept so b = 4

equation: y = 3x + 4

answer: <span>C. y = 3x + 4</span>
6 0
3 years ago
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Find the surface area of the cube shown below.<br> units 2 1/2
dalvyx [7]
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3 years ago
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Lincoln Middle School has a student body of 5 ^5 students. Each class has approximately 5 ^2 students. How many classes does the
Tamiku [17]

There are 5^5 students on the school and 5^2 students per class.


So, think:


1 class ----------- 5^2 students

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Multiply:


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5^5 = x.5^2

x = \frac{5^5}{5^2}

x = 5^{5-2}

x = 5^3

x = 125


There are 125 classes.

4 0
3 years ago
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