3 years ago

2x + 7 = 4 + x solve equation using tables

Mathematics

1 answer:

Alika [10]3 years ago

7 0

Answer:

x=-3

Step-by-step explanation:

2x+7=4+x

2x-x+7=4

x+7=4

x=4-7

x=-3

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What percent is equivalent to 45? 20% 40% 60% 80%

Rzqust [24]

Answer:

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The table gives the average age of airplanes per airline at Camila’s local airport. By what percent is the number of airlines wi

VladimirAG [237]

The percentage that the number of airlines with an average airplane age of 14 is less than the number of airlines with an average airplane age of 11 is:

B. 20%.

<h3>What is a percentage?</h3>

The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

$P = \frac{a}{b} \times 100\%$

The percentage of airlines with an average age of 14 years is:

$P = \frac{2}{15} \times 100\% = 13.33\%$

The percentage of airlines with an average age of 11 years is:

$P = \frac{5}{15} \times 100\% = 33.33\%$

The difference is:

33.33% - 13.33% = 20%.

Hence option B is correct.

More can be learned about percentages at brainly.com/question/10491646

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2 years ago