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3 years ago

Solve the inequality and graph the solution |7x-7|+2<23

Mathematics

1 answer:

Naya [18.7K]3 years ago

3 0

$|7x-7|+2 < 23\ \ \ \ \ |-2\\\\|7x-7| < 21\iff7x-7 < 21\ \wedge\ 7x+7 > -21\ \ \ \ \ \ |+7\\\\7x < 28\ \wedge\ 7x > -14\ \ \ \ \ \ \ |:7\\\\x < 4\ \wedge\ x > -2\\\\-2 < x < 4$

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Murrr4er [49]

Answer:

Step-by-step explanation:

58 would increase the mean since it is much higher than the other numbers, making the data inaccurate

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3 years ago

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Westkost [7]

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2 years ago

1 plus 1<br> Plus 4 plus 4444 plus 1928 plus 63626

fenix001 [56]

Answer:

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2 years ago

Read 2 more answers

The areas of two similar triangles are 72dm^2 and 50dm^2. The sum of their perimeters is 226dm. What is the perimeter of each of

Kruka [31]

Answer:

Per2 = 102.727 dm

Per1 = 123.272 dm

Step-by-step explanation:

We know that the area of similar triangles are related to the square of their perimeters.

This means that

(Per1^2)/(Per2^2) = Area1 / Area2

If we take the square root of the previous equation

(Per1)/(Per2) = $\sqrt{Area1 / Area2}$

(Per1)/(Per2) = $\sqrt{72/ 50}$

(Per1)/(Per2) = 1.2

We also know that

Per1 + Per2 = 226 dm

So,

1.2*Per2 + Per2 = 226 dm

2.2*Per2 = 226 dm

Per2 = 102.727 dm

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3 years ago

Dante is driving 638 miles to his cousin's house. his car has a 12- gallon tank and goes 22 miles for every gallon of gasoline.

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Each tank goes for

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How many times he'll have to stop will be related to

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He started with a full tank so that means he'll have to fill up twice, once after 264 miles, once after twice that, 528 miles.

8 0

3 years ago