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kompoz [17]
3 years ago
13

HELP ASAP! 20 POINTS! 5 QUESTIONS!

Mathematics
1 answer:
Ainat [17]3 years ago
6 0

Answer:

1. Let the unknown number be x

The phrase “8 and” means addition so that’s 8 +

5 times a number is multiplication so that’s 5 times x, or simply, 5x

So the correct equation would be 8 + 5x = 43

And the correct value for variable x is 7

8 + 35 = 43

2. A

3. Here we can see that there has to be a single unknown variable and using that variable we have to create an equation. That equation will ultimately help us to find the exact value of the variable. This way we can easily reach the answer that is asked in the question.

Let us assume the length of the first piece = x

Length of the second piece = 2x

Length of the third piece = 6x

Now we can get to the equation

x + 2x + 6x = 180

9x = 180

x = 180/9

 = 20

So the length of the first piece of the board is 20 feet.I hope i have explained the problem to your satisfaction and understanding

4. C

5. B

Step-by-step explanation:


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2 years ago
A dolphin was swimming 6 feet below sea level. The number line shows the
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On the number line, move 4 units to the right. End at -2. The dolphin was 2 feet below sea level.

<h3>What is number line?</h3>

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On the number line, move 4 units to the right. End at -2. The dolphin was 2 feet below sea level.

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1 year ago
If you buy 8 kilograms of apples and 2.5 kilograms of pears how many more grams of apples are there
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Answer:

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Step-by-step explanation:

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