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scZoUnD [109]
3 years ago
5

Please help: Work out an estimate to these calculations

Mathematics
1 answer:
Effectus [21]3 years ago
3 0

Answer:

6 , 1, 50

Step-by-step explanation:

1) 4 * 3 /2 = 6

2) (90 - 70) / 20 = 1

3) 100 * 5 / 10 = 50

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Helppppppp! Please <br> Comment the right answer
ahrayia [7]

Answer:

The fourth option

Step-by-step explanation:

48 is the minimum height, 42 is his current height, and h is the height he must grow. 42 +h is at least 48 so that rules out the first and third options. The second option would be around twice the required  height, so it must be the fourth option.

8 0
4 years ago
Solve for x.<br> 3x = 2/5<br><br> A) 1/4<br> B) 2/15<br> C) 5/6<br> D) 6/5
mafiozo [28]

Answer:

B:2/15

Step-by-step explanation:

Divide both sides by 3

x=2/15

Hope this helped!

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5 0
3 years ago
Rational number that is between 9.5 and 9.7. Explain why it is rational.
Marina86 [1]
9.6 cause it can be a fraction or ratio
4 0
3 years ago
A rectangular garden has length and width as given by the expressions below. Length: 4 − 7(3x + 4y) Width: 3x(−2y) Write a simpl
liraira [26]

Answer:

Step-by-step explanation:

Length of the garden = 4 - 21*x - 28*y

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Perimeter of the garden = 2*(Length + Width)

P = 8 - 42*x - 56*y - 12*x*y

4 0
3 years ago
If carbon dioxide, methane, and water vapor were not in the atmosphere, then
Savatey [412]
<h2>Answer:</h2>

D. The Earth's surface would be much colder than it is.

<h3>Step-by-step explanation:</h3>

This is because warm temperatures and high levels of atmospheric carbon dioxide happen at about the same time. So if atmospheric carbon dioxide concentrations double warm up by between 2 and 4.5 degrees Celsius. On the other hand, water vapor promotes, as the greatest contributor, to the Earth’s greenhouse effect. In this way, if carbon dioxide, methane, and water vapor were not in the atmosphere, then it's obvious that the Earth's surface would be much colder than it is.

3 0
3 years ago
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