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Ulleksa [173]
3 years ago
15

I think of a number and multiply it by 4. I then add 8 and I'm left with an answer of 30. What number did I think of? Form and s

olve an equation to find the number.
Mathematics
1 answer:
postnew [5]3 years ago
5 0

Answer: number= 5.5; equation: 4x+8=30

Step-by-step explanation:

Take x for the unknown number. Then just follow the words and turn them into mathematical symbols. Easy.

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What is the exact value of 11.68 - 0.48 ÷ (-1.6) =
Ann [662]

Answer:

11.93

Step-by-step explanation:

Order of Operations rules require that we do the division first:

-0.48      48

-------- = --------- = 0.3

-1.6        1600

Then we combine 11.68 ad 0.3, obtaining 11.93.

5 0
3 years ago
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Carl is making the kite shown (shorter sides measure 24 inches) with a perimeter of 120 inches
elena-14-01-66 [18.8K]

Answer:

To solve for x the equation would be. (120 - 48) ÷ 2 = X

Step-by-step explanation:

This is because to follow pemdas you do the parenthesis first so you subtract both of the shorter sides. Next since there are two longer sides you divide by two to get the answer. Each longer side is equal to 36 inches.

Hope this helps

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Which number is irrational...please help!!
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Answer:

D I think

Step-by-step explanation:

7 0
3 years ago
Which expression shows the result of applying the distributive property to 3(1/5x − 1/7)?
elena55 [62]
<span>The expression that shows the result of applying the distributive property to 3(1/5x − 1/7) is:

3/5(x) - 3/7

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4 0
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Suppose researchers test 100 college students, whose ages range from 18 to 23. They also test 100 people at a nearby community c
prisoha [69]

Answer:

b. You would conclude that the differences in the average scores can be traced to differences in the working memory of the two groups.

Step-by-step explanation:

Though the average scores of the two sets could have lead to various conditions, but retentive ability deminishes with respect to an increase in age. With respect to the age of the elderly people involved, it is expected that some of them would not be able to retain information for a long period of time. Thus, their average score is 72%.

The college students' are younger, so it is expected that they should be able to retain more information. That ability is one of the reasons why their average score is 85%.

It can be concluded from the research that the differences in the average scores is probably due to the working memory of the two groups.

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3 years ago
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