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malfutka [58]
2 years ago
14

Two-fifths of one less than a number is less than three-fifths of one more than that number. What numbers are in the solution se

t of this problem?
x less-than negative 5
x greater-than negative 5
x greater-than negative 1
x less-than negative 1
Mathematics
2 answers:
wlad13 [49]2 years ago
8 0

Answer:

B

Step-by-step explanation:

Let the number = x

2/5 (x - 1)

<

3/5 (x + 1)

2/5 (x - 1 ) < 3/5(x+ 1)      Multiply both sides  by 5

2(x - 1) < 3 ( x + 1)            Remove the brackets.

2x - 2 < 3x + 3                Add 2 to both sides

2x < 3x + 5                     Subtract 3x from both sides

2x - 3x < 5              

- x < 5                            Here's the tricky part . Divide by - 1

x > -5                             Notice what happened. The < become > That happens because you have divided (or multiplied) by a negative number.

The original question 2/5 (x - 1 ) < 3/5(x+ 1)    was graphed. The red part is every value that satisfies the inequality. You should be using a y and x together to find a more suitable answer using this program. But if you just look along the x axis, you will see that the < has been turned around.

B The second one from the top.

SIZIF [17.4K]2 years ago
3 0

Answer:

B. x greater than -5

Step-by-step explanation:

2021 edg

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The distance of the spaceship in discuss as in the task content given can be evaluated as; 800miles.

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The distance travelled by the spaceship in discuss can be evaluated by means of the slope of the linear relationship as follows;

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Remarks:

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It is hard to comprehend your question. As far as I understand:

f(x,y) = e^(-x)

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Anyways, to find the volume between the surface and your rectangular region R, we must evaluate a double integral of f on the region R.

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