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3 years ago

Twenty more than twice a number of x

Mathematics

1 answer:

katen-ka-za [31]3 years ago

7 0

Answer:

2x+20

Step-by-step explanation:

You take 2x because twice a number of x. Then you take 20 cause you have more.

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Allen wants to have a mean of 90 on his math quizzes. So far, he has scored 86, 94, 88, 95, and 89. What is the least score that

viva [34]

Answer:

Step-by-step explanation:

$\frac{86 + 94 + 88 + 95 + 89 + x}{6} = 90$

The mean would be the sum of all the math quiz grades divided by the number of quizzes taken.

Solve for x:

$86 + 94 + 88 + 95 + 89 + x = 540$

$452 + x = 540$

$x = 88$

Thus, Allen needs at least an 88 to obtain a mean of at least 90.

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3 years ago

If cos theta is less than 0 and cot theta is greater than 0, then the terminal point determined by theta is in:

Keith_Richards [23]

There exist an abbreviation that ALL - S - T - C where all trigonometric functions in first quandrant are positive. S, T, and C are the first letters of the trigonometric functions that are positive in quadrant 2, 3, and 4, respectively. This also means that in the same quadrant, their reciprocals are also positive. For the given above, it is in Quadrant 3 where T is positive and cosine is negative.

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2 years ago

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The yearbook club had a meeting. The meeting had 20 people, which is four-fifths of the club. How many people are in the club?

Rama09 [41]

There are 32 people in the yearbook club

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3 years ago

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Logan's e-reader sent a notification saying that he has completed 75% of the e-book.

Vika [28.1K]

Answer:

The total number of pages in the e-book is 240.

Step-by-step explanation:

Given:

Logan has completed 75%

Logan has read 180 pages

To Find:

The total number of pages in the e-book= ?

Solution:

Let X be the total number of pages on the e-book

then

=> 75% of X = 180

Now lets find the value of X

X = $\frac{180}{75\%}$

X = $\frac{180}{\frac{75}{100}}$

X = $\frac{180}{0.75}$

X = 240

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3 years ago

Lin took 75 boxes of carrots and 80 boxes of potatoes to the market. She sold 68 boxes of carrots and 71 boxes of potatoes. How

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She took 7 boxes of carrots and 9 boxes of potatoes home.

75 boxes of carrots - 68 boxes of carrots = 7 boxes of carrots.

80 boxes of potatoes - 71 boxes of potatoes = 9 boxes of potatoes.

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3 years ago

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