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Elza [17]
3 years ago
15

The formula n(n+1)/2

Mathematics
1 answer:
mafiozo [28]3 years ago
5 0
The answer is in the attached image

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An office building has 24 offices on each floor. Each office either face north, south, east, west , and the amount of offices th
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Answer:

198

Step-by-step explanation:

33 * 24 = 792

792 / 4 = 198

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Solve the following problems mentally and match it to its corresponding solution.
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Answer:

<h3>1. t=10</h3><h3>2. t=4</h3><h3>3. t=40</h3>

Step-by-step explanation:

Isolate the term of t from one side of the equation.

<h3>1. 4t=40</h3>

First, you have to divide by 4 from both sides.

4t/4=40/4

Solve.

Divide the numbers from left to right.

40/4=10

<h3><u>t=10</u></h3>

<h3>2. 10+t=14</h3>

<u>First, change sides.</u>

t+10=14

<u>Then, subtract by 10 from both sides.</u>

t+10-10=14-10

<u>Solve.</u>

<u>Subtract the numbers from left to right.</u>

14-10=4

<h3><u>t=4</u></h3>

<h3>3. 70-t=30</h3>

First, subtract by 70 from both sides.

70-t-70=30-70

Solve.

30-70=-40

<u>Rewrite the problem down.</u>

-t=-40

Divide by -1 from both sides.

-t/-1=-40/-1

<u>Solve.</u>

<u />

<u>Divide the numbers from left to right.</u>

-40/-1=40

<h3><u>t=40</u></h3>

  • <u>Therefore, the correct answer is t=10, t=4, and t=40.</u>

I hope this helps! Let me know if you have any questions.

6 0
2 years ago
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It would be 60. He sold his painting for 50 which was 10 less that the original price. So 50+10=60
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3 years ago
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F(-2)=3+2x how do I solve this homework<br>​
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Answer:

Photomath

Step-by-step explanation:

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Please answer and explain!!
alexandr1967 [171]

Answer:

Step-by-step explanation:

The two triangles are congruent.

∠L ≅ ∠ B            Given

LN ≅ BZ              Given

∠N ≅∠Z               Given

ΔLNM ≅ ΔBZA     Angle Side Angle congruent

6 0
2 years ago
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