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JulsSmile [24]
3 years ago
6

A set of telephone poles is stacked in a pile, 8 layers high. The top layer consists of 20 telephone

Mathematics
1 answer:
Anarel [89]3 years ago
5 0

<u><em>Answer:</em></u>

D. 272 poles

<u><em>Explanation:</em></u>

<u>We are given that:</u>

The top layer has 20 poles, the next down one has 24 poles and the third one has 28 poles

<u>We can note that</u> each layer has 4 poles more that the one above it

<u>Based on this, we can get the number of poles in each layer as follows:</u>

Top layer has 20 poles

Second one has 20 + 4 = 24 poles

Third one has 24 + 4 = 28 poles

Fourth one has 28 + 4 = 32 poles

Fifth one has 32 + 4 = 36 poles

Sixth one has 36 + 4 = 40 poles

Seventh one has 40 + 4 = 44 poles

Eighth one has 44 + 4 = 48 poles

Now, we can get the total number of poles by adding the poles in all layers

<u>This is done as follows:</u>

Total number of poles = 20 + 24 + 28 + 32 + 36 + 40 + 44 + 48

Total number of poles = 272 poles

Hope this helps :)

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LiRa [457]
Let A= adult tickets and S= student tickets
A+S=148
9A+6S=1,188
You can plug into a calculator or by hand is shown below
-6(A+S)=-6(148) Checking the answer
-6A-6S=-888 A=100
+ 100+S=148
9A+6S=1,188 S=48
——————— 9(100)+6(S)=1,188
3A+0S=300 900+6S=1,188
1/3(3A)=1/3(300) 6S=288
A=100 S=48

And to check is on the right side
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2 years ago
Determine the intercepts of the line that passes through the following points
sladkih [1.3K]

Answer:

(2,0) - x -intercept

(0, 1.5) - y-intercept

Step-by-step explanation:

The slope of the points can be found by writing a ratio of vertical change to horizontal change. It can be found in the table by subtracting y values from each other and subtracting x values from each other. The y values decrease by 3 each time or -6 - -3 = -6 + 3 = -3.

The x values increase by 4.

So the rate of change is -3/4.

This means if you go backwards on the table the previous point would be (2, 0). This is the x-intercept.

To find the y-intercept, you must go further back. Going back 2 more units would make the table appear as:

x                      y

-2                    3

0                      ???

2                      0

6                     -3

10                    -6

14                    -9

Since the y values decrease by 3 each time and we went back half the usual amount, then the value would be 1.5.

6 0
3 years ago
1) Mr. Bond can harvest 2 1/3 acres of corn in 1
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This is a fairly simple problem to do. Since you already know how many acres of corn can be harvested in a day then just multiply 10.5 (because of that being however many days being harvested) by 2 1/3. 10.5*2 1/3=24.5. Mr. Bond can harvest 24.5 or 24 1/2 acres of corn in 10.5 days.
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3 years ago
Simplify the expression. (n^7)^2
tankabanditka [31]

Answer:

n^14

Step-by-step explanation:

Simplify. Note that when you have a power on top of a power, you multiply the two powers.

(n^7)^2 = n^(7 * 2) = n^14

n^14 is your answer.

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7 0
3 years ago
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What does the 2x2 mean?
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