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Serjik [45]
3 years ago
11

Solve the following equation, answer as a reduced, mixed number. Then place the correct number in the box provided. 4(7 - 3x) =

7(4 - 2x)
Mathematics
1 answer:
Luda [366]3 years ago
3 0

Answer:  x = 0

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

4(7 - 3x) = 7(4 - 2x)

28 - 12x = 28 - 14x        <em>distributed</em>

28 + 2x = 28                 <em>added 14x to both sides</em>

       2x = 0                    <em>subtracted 28 from both sides</em>

         x = 0                     <em>divided both sides by 2</em>

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y - 5x = 3

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y = 3 + 5x

rearrange to slope intercept form

y = 5x + 3

3 0
3 years ago
A cell splits in half every 15 minutes. How many cells will there be in 150 minutes (2.5 hours)??
Trava [24]
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5 0
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Part A: Find a rational number that is between 7.7 and 7.9. Explain why it is rational. (2 points)
8_murik_8 [283]
A rational number is any number that can be written as the ratio between two other numbers i.e. in the form \frac{a}{b}

Part A:
An easy choice that makes sense is 7.8, right in the middle. To prove that it's rational we need to write it as a ratio. In this case we have 7.8=\frac{78}{10}

Part B:
We need a number that can't be written as a ratio (because it neither terminates nor repeats). Some common ones are \sqrt{2}, e, \phi and \pi so it makes sense to try and use those to build our number. In this case \frac{11\sqrt{2}}{5}\approx7.78 works nicely. 
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3 years ago
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A rectangular block has square base of area 64 cm². If the thickness of the block is 5 cm, find its total surface area. ​
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hope it is helpful

4 0
3 years ago
Read 2 more answers
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