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3 years ago

Use a proportion to find 70% of 34. will Mark brainlest

Mathematics

2 answers:

Monica [59]3 years ago

8 0

Answer:

23.8

Step-by-step explanation:

10% of 34 is 3.4, you multiply that by 7 and get 23.8

Blababa [14]3 years ago

4 0

Answer:

23.8

Step-by-step explanation:

The world is filled with nice people. If you cant find one, be one.

-mhanifasbiggestfan

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jim’s percentile rank in a class of 50 students was the 92nd. what was his rank in the class (1st = best, 2nd = second best, etc

dezoksy [38]

Jim is ranked third best in his class of 50 students.

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3 years ago

find the smaller of 2 consecutive integers, x, if the sum of the smaller is 3 times the larger is -5. Write an equation and solv

Leno4ka [110]

You have defined x to be the smaller of two consecutive integers. Then the larger will be (x+1). The given relation is

... (x) + 3(x+1) = -5 . . . . the smaller plus 3 times the larger is -5

... 4x + 3 = -5 . . . . . . . .simplify

... 4x = -8 . . . . . . . . . . subtract 3

... x = -2 . . . . . . . . . . . divide by the coefficient of x

The smaller of the two integers is -2.

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3 years ago

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vaieri [72.5K]

Option 1 is the correct answer

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3 years ago

If Alfie tosses the paper cup more times, what is the expected number of times that the cup will land on its side?

IRINA_888 [86]

Question:

Alfie tossed a paper cup in the air 150 times and recorded the side it landed on.

Right side up = 60 Upside down = 53 Side = 37

If Alfie tosses the paper cup 100 more times what is the expected number of times the cup will land on its side?

Answer:

The expected number of times the cup will land on its side is 25 times

Step-by-step explanation:

Given

$Right = 60$

$Upside\ down = 53$

$Side = 37$

Required

First, we calculate the probability of landing on side

$P(Side) = \frac{n(Side)}{Total}$

$P(Side) = \frac{37}{150}$

$P(Side) = 0.247$

Next, we calculate the expected value; E(x) using:

$E(x) = n * P(x)$

When tossed 100 more times:

n = 100 and P(x) = P(Side) = 0.247

So:

$E(x) = 100 * 0.247$

$E(x) = 24.7$

$E(x) = 25$ --- approximated

Hence, it is expected that it will land on its side 25 times

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3 years ago

Question A library offers five different lectures on music appreciation, the lectures can be identified by the letters A, B, C,

babymother [125]

Answer:A

Step-by-step explanation:

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3 years ago