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3 years ago

What is the answer to 2+b=7

Mathematics

1 answer:

Natasha_Volkova [10]3 years ago

7 0

Answer:

b=5

Step-by-step explanation:

2+b=7

Subtract 2 from each side

2+b-2=7-2

b= 5

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12345 [234]

Answer:

7(2a +7)

Step-by-step explanation:

$14a+49\\=7\times 2a+7\times 7\\= 7(2a +7)$

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3 years ago

The model represents an equation. What is the solution for the equation?

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Answer: A x = 3

Step-by-step explanation:

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3 years ago

In a Gallup poll of randomly selected adults, 66% said that they worry about identity theft. For a group of 1013 adults, the m

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Answer: 669

Step-by-step explanation:

Given, In a Gallup poll of randomly selected adults, 66% said that they worry about identity theft.

i.e. The proportion of adults said that they worry about identity theft. (p) = 0.66

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Then , Mean for the sampling distribution of sample proportion = <em>np</em>

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2 years ago

In 2003, there were about 5.8078 X 10^8 people using the Internet in the world and about 1.6575 X 10^8 of these people were in t

lianna [129]

Answer:

28.5% Internet users in 2003 were in the United States.

Step-by-step explanation:

We are given the following in the question:

Number of people using the internet =

$5.8078 \times 10^8$

Number of people in United States =

$1.6575 \times 10^8$

Percent of Internet users in 2003 were in the United States =

$=\dfrac{\text{Number of users in United States}}{\text{Number of internet user in world}}\times 100\%\\\\=\dfrac{ 1.6575 \times 10^8}{5.8078 \times 10^8}\times 100\%\\\\=28.5\%$

Thus, 28.5% Internet users in 2003 were in the United States.

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3 years ago

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