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3 years ago

Which property would be used to solve the expression x + 12 = 47 ?

Mathematics

2 answers:

KIM [24]3 years ago

3 0

A. Inverse

<h2>Explanation:</h2>

Basically, inverse Property of Addition states that if you add any number added to its opposite the result will be equal zero. So, here we have the following equation:

$x + 12 = 47$

Adding -12 to both sides we get:

$x + 12 - 12= 47-12 \\ \\ \\ But \ 12+(-12)=0 \\ \\ \\ So: \\ \\ x + 0= 35 \\ \\ Finally: \\ \\ \boxed{x=35}$

<h2>Learn more:</h2>

Distributive property: brainly.com/question/12256474

#LearnWithBrainly

Gelneren [198K]3 years ago

3 0

Answer:

A. Inverse

Step-by-step explanation:

The given equation is $x+12=47$

To solve this equation, we use the inverse property of addition.

We add the additive inverse of 12 to both sides to get:

$x+12-12=47-12$

We then simplify to obtain:

$x+0=35$

This gives us x=35.

The correct answer is A

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In a random sample of 300 attendees of a minor league baseball game, 182 said that they bought food from the concession stand. C

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Answer:

<em>90% confidence interval for the proportion of fans who bought food from the concession stand</em>

(0.5603,0.6529)

Step-by-step explanation:

<em>Step(i)</em>:-

<em>Given sample size 'n' =300</em>

Given data random sample of 300 attendees of a minor league baseball game, 182 said that they bought food from the concession stand.

<em>Given sample proportion </em>

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level of significance = 90% or 0.10

Z₀.₁₀ = 1.645

<em>90% confidence interval for the proportion is determined by</em>

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$(0.6066 - 1.645\sqrt{\frac{0.6066(1-0.6066)}{300} } ,0.6066+1.645\sqrt{\frac{0.6066(1-0.6066)}{300} })$

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(0.5603,0.6529)

<u>final answer</u>:-

<em>90% confidence interval for the proportion of fans who bought food from the concession stand</em>

(0.5603,0.6529)

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