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marta [7]
3 years ago
15

If a 5ft post casts an 8ft shadow at the same time that a nearby tree casts a 48ft shadow how tall is the tree

Mathematics
1 answer:
Masteriza [31]3 years ago
5 0
Here we would use the idea that the post and its shadow form a triangle and the tree and its shadow form a triangle and the side lengths of these two triangles are of the same ratio, ie. if the height of the tree is given by h then:
5/8 = h/48
h = 48*(5/8)
h = 6*5 = 30
Thus the tree is 30 ft tall
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What 3920 x 3=?????????
Kazeer [188]

Answer:

11760

Step-by-step explanation:

5 0
3 years ago
The ratio of peppermint to chocolate is 5:3 and the ratio of peppermints to gummies is 3:4. What so the ratio of chocolates to g
Liula [17]
Peppermint to chocolate is 5:3, so5p=3c, and peppermints to gummies is 3:4, so 3p = 4g.

5p = 3c
*3     *3

15p = 9c
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3p = 4g
*5      *5
15p = 20g
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15p = 9c
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9c = 20g, so chocolates to gummies is 9:20.
5 0
3 years ago
Read 2 more answers
Select the correct answer from each drop-down menu.
bulgar [2K]

we conclude that when we evaluate in x = 7, the given expression is equal to 12.

<h3></h3><h3>How to evaluate the expression?</h3>

Here we have the expression:

6*(x - 5)

Which represents the product of 6 and the sum between x and negative 5.

We want to evaluate it in x = 7, that means just replacing the variable in the given expression by the number 7, and then solving the expression.

Let's do that:

6*(7 - 5) = 6*(2) = 12

In this way, we conclude that when we evaluate in x = 7, the given expression is equal to 12.

If you want to learn more about evaluating:

brainly.com/question/4344214

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7 0
2 years ago
Cameron has a stack of 13 identical books that is 30.55 cm tall. He divides the total height by the number of books to find the
Lesechka [4]
30.55 * 13=2.35
The width would be 2.35
So how many decimal places do you see?

7 0
3 years ago
Find a formula for the sum of the first n even integers : 2 + 4 + 6 + ... + 2n.
Sedbober [7]

Let S be the sum,

S = 2 + 4 + 6 + ... + 2 (n - 2) + 2 (n - 1) + 2n

Reverse the order of terms:

S = 2n + 2 (n - 1) + 2 (n - 2) + ... + 6 + 4 + 2

Add up terms in the same positions, so that twice the sum is

2S = (2n + 2) + (2n + 2) + (2n + 2) + ... + (2n + 2)

or

2S = n (2n + 2)

Divide both sides by 2 to solve for S :

S = n (n + 1)

7 0
2 years ago
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