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MaRussiya [10]
3 years ago
13

3. The temperature at 6:00 P.M. was 15°C. The temperature dropped 2°C per hour.

Mathematics
2 answers:
UNO [17]3 years ago
7 0

Answer:

I also need help in this question

Harman [31]3 years ago
3 0

Answer:

-5°c

Step-by-step explanation:

6 00 p.m. to 4 00 a.m. = 10 hrs

10x2= 20

15-20= -5

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Your answer is a fish tank.
4 0
3 years ago
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Joshua has math and reading homework tonight. Joshua can solve each math problem in 2.5 minutes and he can read each page in 3 m
liraira [26]

Answer:

Joshua solved 7 math problems and tread 14 pages.

Step-by-step explanation:

Let x be the number of math problems Joshua solved. The number of pages Joshua read is twice the number of math problems he solved, then 2x is the number of pages Joshua read.

Joshua can solve each math problem in 2.5 minutes, then x math problems he solves in 2.5x minutes.

Joshua can read each page in 3 minutes, then 2x pages he reads in 3\cdot 2x=6x minutes.

It took him 59.5 minutes to complete all of his homework, so

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Solve this equation:

2.5x+6x=59.5\\ \\8.5x=59.5\\ \\85x=595\\ \\x=7\\ \\2x=14

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5 0
3 years ago
Read 2 more answers
Factorize <br><img src="https://tex.z-dn.net/?f=x%20%7B%3F%7D%5E%7B2%7D%20%20%20%20%20-%20x%20-%206" id="TexFormula1" title="x {
dmitriy555 [2]
<h2><u>Given</u> :-</h2>

x^2 - x - 6

<h2><u>Solution</u> :-</h2>

Factorisation :-

x^2 - x - 6

= (x - 3)(x + 2)

\\

Answered by - ItzMaster

5 0
3 years ago
What is the measure of angle A if angle A and angle B are supplementary and the measure of angle B is 20?
Volgvan

Answer:

A. 160

Step-by-step explanation:

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Neporo4naja [7]
I think the correct answer from the choices listed above is the last option.The expression x^2 + 16 is a prime expression which cannot be further simplified over the real numbers<span>. But when considering the complex numbers, the factor would be:

</span><span>(x + 4i)(x - 4i)</span>
7 0
3 years ago
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