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3 years ago

Round to the greatest place value

Mathematics

1 answer:

butalik [34]3 years ago

6 0

Answer:

In order to round each value to the greatest place value, look at the second digit in the number. If it is 5 or higher, then the first number becomes one greater, and the rest of the digits become zeros. If it is 4 or lower, then the first number stays the same, and the rest of the numbers become zeros.

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Solve the equation for y:<br> 3 + 5y/2<br> = X

pychu [463]

Answer :

y = $\frac{2}{5} ( x - 3)$

Step-by-step explanation:

6 + 5y = 2x

or, 5y + 6 - 6 = 2x - 6

or, 5y = 2x - 6

or, 5/5 y = 2 ( x - 3) / 5

or, y = 2/5 ( x - 3)

therefore, y = $\frac{2}{5} ( x - 3 )$

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kherson [118]

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Step-by-step explanation:

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Lunna [17]

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4 years ago

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The book rack sold 24 paperbacks on Saturday, 17 of them mysteries. What percent of the books were mysteries?

igomit [66]

Answer:

About 71% of the books were mystery books

Step-by-step explanation:

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and round it to 71

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3 years ago

Two points are selected randomly on a line of length 32 so as to be on opposite sides of the midpoint of the line. In other word

Paladinen [302]

Solution :

Let us consider the squares be $[1, 16] \times [16, 32]$

If x ranges from the 0 to 16 and the y ranges from 16 to 32, we see that the boundary of the region $y-x \geq 9 \text{\ is}\ y - x = 9$ which goes from the $(7, 16 ) \text{ to}\ (16, 25)$ .

And so it is easier to find the area of region where $y-x \leq 9$ . This is the triangle with points $(7,16),(16,25) \text{ and}\ (16,16)$ as its vertices.