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Leviafan [203]
2 years ago
6

Solve, 2x + 4 and explain your answer

Mathematics
2 answers:
Andreas93 [3]2 years ago
7 0

Answer:

x=2

Step-by-step explanation:

Ad libitum [116K]2 years ago
5 0

Answer:

x=-2

Step-by-step explanation:

2x+4-4=0-4

2x=-4

x=-2

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Matt buys a new fish tank. The fish tank is in the shape of a cuboid. The diagram shows water in the tank. 30 cm 30 cm 100 cm Ma
lyudmila [28]

Answer: Yes, but only if he houses 37, 38, 39, or 40 fish

Anything larger than 40 and he'll need more room.

==========================================================

Explanation:

The tank is 30 cm by 30 cm by 100 cm. The volume is 30*30*100 = 90,000 cm^3 which is shorthand for "cubic centimeters".

We're told that 1000 cm^3 = 1 liter, which means the 90,000 cm^3 converts to (90,000)/(1000) = 90 liters.

The fish tank is 90 liters.

Since 1 gallon = 4.5 liters, this means the 90 liter tank converts to 90/(4.5) = 20 gallons

----------------------------

Your teacher mentions "He can keep 2 small fish for every 1 gallon".

Since the tank is 20 gallons, that means he can keep 20*2 = 40 fish. This value is larger than 36, so Matt is correct to a point. If Matt is thinking 37, 38, 39, or 40 fish then he would be correct. If Matt is wanting more than 40 fish, then he'll need a bigger tank.

In short, he can't have any number over 36 and can only have 4 specific values (the four values mentioned earlier).

So technically, Matt is correct, but strong clarification is needed.

4 0
3 years ago
I just two questions :)
pogonyaev

Answer:

Hi There!!

Step-by-step explanation:

Your answers are:

<h2>1. C</h2><h2>2. A</h2><h2 /><h2 />

I hope this helps!!

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7 0
2 years ago
Read 2 more answers
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larisa [96]

Step-by-step explanation:

Meeting ID: 347 720 4583

Passcode: 12345

6 0
2 years ago
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Which of the following shows the equation below rewritten in the form
gregori [183]

Answer:

D

Step-by-step explanation:

7x2-2x+3 = 5x2-10

7x2-2x+3+10=5x2-10+10

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7x2-5x2-2x+13=5x2-5x2

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3 years ago
What is the absolute value of -8 and 8
chubhunter [2.5K]
The absolute value is 8 because the absolute value is opposite of -8. 
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3 years ago
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