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3 years ago

1. Solve for x: x/12 + 15 = 648

Mathematics

1 answer:

Vesnalui [34]3 years ago

6 0

Answer:

1. x = 7596

2. x = -6.25

3. x = 8.5

hope this helps:)

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A trail mix is made by adding pecans that sell for 2.50 per pound to chocolate candies that sell for 1.00 per pound. How much of

Vera_Pavlovna [14]

Answer:

Should be used 28 pounds of pecans and 32 pounds of chocolate candies

Let

x -----> pounds of pecans used

y ----> pounds of chocolate candies used

we know that

-----> equation A

-----> -----> equation B

Solve the system of equations by graphing

Remember that the solution is the intersection point both graphs

Using a graphing tool

The solution is the point (28,32)

see the attached figure

therefore

Should be used 28 pounds of pecans and 32 pounds of chocolate candies

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4 years ago

Which statement implies that A and B are independent events?

Tasya [4]

A and B are insdependent if prob (A and B) = prob(A) x prob(B)

7 0

3 years ago

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There are ten cards, each has a different number on it, from 1 to 10. Sam took one card, and it was 5 on it. If he takes one of

Akimi4 [234]

there are 9 cards left

1,2,3,4,6,7,8,9,10

the only cards that will make the sum less than 8 is 1 and 2

2/9

Answer: 2/9

6 0

4 years ago

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Suppose that the annual rainfall in Ferndale, California, is known to be normally distributed, with a mean of 35.5 inches and a

erastovalidia [21]

The average annual rainfall will be more than 40.6 inches in about 2.1 percent of the years.

<h3>What is the average annual rainfall?</h3>

Generally, the equation for the probability is mathematically given as

$P( X < x) = p( Z < x - \mu / \sigma)$

Therefore

$P( X > x) = 0.021$

$P( X < x ) = 1 - 0.021\\\\\p( X < x) = 0.979$

$P( Z < x - \mu / \sigma) = 0.979$

The z score for the probability of 0.979 is 2.034, according to the table of z values.

$x - \mu / \sigma \\\\x= 2.034$

In the given equation, replace the values of mu and sigma with their respective values, and then solve for x.

$x - 35.5 / 2.5 \\x= 2.034$

In conclusion, The average annual rainfall will be more than 40.6 inches in about 2.1 percent of the years.