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mezya [45]
3 years ago
14

2. If 40% of a number is 56, what was the original number Can someone help me for this one pls

Mathematics
2 answers:
ziro4ka [17]3 years ago
4 0

Answer:

140

Step-by-step explanation:

evablogger [386]3 years ago
3 0
140 is the answer to this question
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Find the area of the rectangle.<br><br> l=10 in, w=7.5 in
Tpy6a [65]

Answer:

It should be 75 inches

Step-by-step explanation:

5 0
2 years ago
Hannah has a biased coin.
muminat
Look at it this way:

When you flip a coin, the probability of it landing with EITHER side showing
is 100%. 

This leads us to the rule ...

               The sum of the probabilities of
               all possible outcomes is 100%.

For a coin:  (probability of heads) plus (probability of tails) = 100%.

That just says:  We're 100% sure that the coin will land with either
heads or tails up.

An "honest" coin gets heads 50% of the time and tails the other 50%.

But if the coin is all bent and squashed and has a feather stuck to
one side and a wad of gum on the other side so that it comes up
heads 70% of the time, then the coin isn't 'honest'.  But it still has to
land EITHER heads OR tails, so the sum of the probabilities is still 100%.

So the probability of heads is 30%.
7 0
3 years ago
The weight of a cat is normally distributed with a mean of 9 pounds and a standard deviation of 2 pounds. Using the empirical ru
coldgirl [10]

If the value of the z-score is 1. Then the probability that a cat will weigh less than 11 pounds will be 0.84134.

<h3>What is the z-score?</h3>

The z-score is a statistical evaluation of a value's correlation to the mean of a collection of values, expressed in terms of standard deviation.

The z-score is given as

z = (x - μ) / σ

Where μ is the mean, σ is the standard deviation, and x is the sample.

The weight of a cat is normally distributed with a mean of 9 pounds and a standard deviation of 2 pounds.

Then the probability that a cat will weigh less than 11 pounds will be

The value of z-score will be

z = (11 – 9) / 2

z = 1

Then the probability will be

P(x < 11) = P(z < 1)

P(x < 11) = 0.84134

Thus, the probability that a cat will weigh less than 11 pounds will be 0.84134.

More about the z-score link is given below.

brainly.com/question/15016913

#SPJ1

4 0
1 year ago
In a math class with 19 students, a test was given the same day that an assignment
Kamila [148]
Shhdhdjdjdjejejdhehehehdhdhdhdhdhdhdhdhhd
4 0
2 years ago
Question 28 of
Helen [10]

y - y1 = m(x - x1) \\ y - 8 = 15(x - 2) \\ y - 8 = 15x - 30 \\ y = 15x - 30 + 8 \\ y = 15x - 22

The equation of line is y = mx+b ; m is slope , b is y- intercept

Please give brainlest

7 0
2 years ago
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