The forecast says the probabity for rain is 70%. What is the proabbaity it will not rain?

Mathematics

1 answer:

mamaluj [8]3 years ago

4 0

Answer:

30%

Step-by-step explanation:

The probality is 30% because 70% + 30% = 100%

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Change 3/4 to twelfths

-BARSIC- [3]

<span>To solve, just think, what times 4 equals 12?

4*3 = 12

Therefore, multiply both sides by 3.

3*3 = 9 and 4 *3 = 12

9/12 is the final answer</span>

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3 years ago

What is the average (arithmetic mean) of the first 90 measurements in a certain list of 92 measurements? (1) the average of the

marishachu [46]

The sum of all the measurements is just the average times the number.

$\bar x = \frac{1}{n} \sum_{i=1}^n x_i$

$\sum_{i=1}^n x_i = n \bar x$

So if the average of all 92 is 7 the sum of those is $92 \times 7$

The average of the last two is 7.2 so their sum is $2 \times 7.2$

That means the sum of the first 90 is $92 \times 7 - 2 \times 7.2$

so the average of the first 90 is

$\dfrac{92 \times 7 - 2 \times 7.2}{90} = 6.99556$ cm

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3 years ago

Please help me - thankyou :)

olga_2 [115]

It is 6 because 1000 would not be the appropiate answer

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3 years ago

An initial investment of $60.00 increases in value by 15% each year. Which of the following statements are true? Select all that

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The situations can be represented by the exponential function f(x)=60x1.15^x
After 7.86 years the value of the investment will be three times the initial value (If you round to the nearest dollar)
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Scenario in what picture?

Brut [27]

What picture are you talking about

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3 years ago