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3 years ago

11

Which of the following is a rational number?

2 answers:

vampirchik [111]3 years ago

7 0

Answer:

The answer is B

storchak [24]3 years ago

4 0

Answer: B

Step-by-step explanation:

In mathematics, a rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number.

All you need to do is find which of following is a whole number or integer.

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at the school carnival tickets can be exchanged for prizes. Mason wants a comic book that cost a 176 tickets. He needs 8 times a

AVprozaik [17]

Mason has 22 tickets now. You can know this because you divide 176 by 8

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3 years ago

Find the value of y in the diagram below.

larisa [96]

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3 years ago

How much of an alloy with 30% copper must be added to 25 pounds of a second alloy that is 20% copper to create a 27% alloy? 33.8

yuradex [85]

Answer:

58.33 lbs.

Step-by-step explanation:

There are already 25 lbs of alloy of copper

Of this 25 lbs, 20% is pure i.e. copper content = 25(0.5) = 5lbs.

Now available is

Copper Other metals

5 lbs 20 lbs

Let x lb of 30% copper is added.

Then new alloy will have 5+0.3x lb copper in total of 25+x lbs

Percentage pure = $\frac{5+0.3x}{25+x} =27%$

Simplify to get

$\frac{5+0.3x}{25+x} =\frac{27}{100} \\\\Cross multiply:\\27(25+x) =100(5+0.3x)\\500+30x =675 +27x\\3x = 175\\x = 175/3 = 58.33 lbs$

Hence answer is 58.33 lbs should be added.

8 0

3 years ago

Read 2 more answers

Miguel drives 295 miles in 5 hours. How many miles does Miguel drive in 75 points

laila [671]

Answer:

Step-by-step explanation:

I have the same question and I'm looking for the answer

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3 years ago

BRAINLEST IF CORRECT!!!!which of the d-values satisfy the following inequality? d/5>4

irinina [24]

Answer:

d = 25

Step-by-step explanation:

$\frac{d}{5} >4$

The value of d has to satisfy the inequality

so replace d with one of the given options

$\frac{25}{5} >4$

We have to simplify the fraction first

$\frac{25}{5} =5>4$

5 0

2 years ago