3 years ago

For all real numbers a and b, a+b=b+a

1 answer:

8 0

This is the "commutative property of addition." The order in which you add numbers together doesn't matter, and doesn't change your final results.

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2 years ago

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Masteriza [31]

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3 years ago

A random sample of museum visitors were asked whether they will purchase tickets to an upcoming exhibit. The resulting confidenc

Vladimir [108]

Answer:

the margin of error is 0.05

Step-by-step explanation:

Margin of error = confidence interval ÷ 2

MOE = CI ÷ 2

Confidence interval CI = 0.2 - 0.1 = 0.1

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2 years ago

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2 years ago

When a number is decreased by 4%, the result is 93. What is the original number

romanna [79]

Answer:

<u>The original number is 96.875</u>

Step-by-step explanation:

Let's find the original number using the Direct Rule of Three, this way:

Percentage Number

100 x

96 93

***********************************************

96x = 93 * 100

96x = 9,300

x = 9,300/96

x = 96.875

<u>The original number is 96.875</u>

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3 years ago