a 15 foot tall tree is next to a slide tree is casting a shadow of 20 feet and the slide is casting a shadow that is 16 feet how tall is the slide

Answers

Answer 1

Answer: You would first write a proportion like this:
15 over 20 = x over 16
Cross multiply 15 times 16 and 20 times x.
15 times 16 = 240. 20 times x = 20x.
Divide both sides by 20.
240/20 = 12
x = 12
The slide tree is 12 feet tall.

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Nathan correctly answered 17 of the 20 questions on the test. What percent of the question did Nathan answer correctly?

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85% is your answer
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Take 17 divided by 20 then times it by 100

28/29 and 30 plz short explanation thanks

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Integers are numbers like ...-3, -2, -1, 0, 1, 2, 3... and so on. So, according to this definition, let's solve this problem:

28. We know that the product of three integers is -3. So, the statement states that we have three factor, so:

a.b.c = -3

The possible values of the factors are:

Factors are: 3, 1 and -1 in which case:

(3)(1)(-1) = -3

Factors are: -3, 1 and 1 in which case:

(-3)(1)(1) = -3

29. In this problem we know two nonzero integers, that is, they cannot be equal to zero. Thus, they must have different sign, that is, one of them must be positive and the other negative.For instance:

-9 and 2

(-9)(2) = -18, So -18 is less than -9 and 2

Another example:

1 and -8

(1)(-8) = -8, So -8 is equal to -8 and -8 is less than 1.

30. The sign of the product of two integers with the same sign is positive, that is:

(+)(+) = (+) and

(-)(-) = (+)

So, the sign of the product of three integers with the same sign are two options:

Option 1. The three integers are positive in which case:

(+)(+)(+) = (+), So the sign of the product is positive

Option 2. The three integers are negative in which case:

(-)(-)(-) = (-), So the sign of the product is negative.

This option two gives us that result because:

(-)(-) = (+) and (+)(-) = (-)

Which of the following is usually the first step in solving a system of nonlinear equations by substitution

Answers

Answer:it is isolating one of the variables...

Step-by-step explanation:

Apex

Answer:

isolating the variable

Step-by-step explanation:

PLEASE HELP 100 POINTSHELP ME FIND THE MEAN

23, 5, 7, 18, 34, 9, 14, 18, 34, 28, 42, 16

Answers

Answer:

Hello! The answer is 20.66

Step-by-step explanation:

1. You have to add up all the numbers in the set (248)

2. You have to divide by how much numbers are in the set by their added amount. (12)

248 ÷ 12 = 20.66

Hope This Helps ;)

Please mark brainliest :)

Answer:

20.66666.... or 20 2/3

Step-by-step explanation:

the average i added all up and divided by 12

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5/6 - 2/6 in simplest form

Answers

$(5)/(6)-(2)/(6)=(3)/(6)=(1)/(2)$

$(5)/(6)- (2)/(6)= ((5-2))/(6)= (3)/(6)= (1)/(2)$

Roger wants to have 400 copies of his resume printed. His local print shop charges $21.50 for the first 200 copies and $10 for every 100 additional copies. How much will the 400 copies cost, including a sales tax of 6%? Type numerical answer only.