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3 years ago

13

timothy bought 12 of his cars to the babysitters. these toy cars represent 30% of his toy car collection. what is the total numb

er of cars in timothy's collection

1 answer:

omeli [17]3 years ago

7 0

If 30% of his collection is 12 cars, then we can use the fraction

30/12=100/x

x=40

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dolphi86 [110]

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3 years ago

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Alex17521 [72]

Answer:

<h2><em><u>6/5</u></em></h2><h2></h2>

Explanation:

Step 1

Multiply the denominator by the whole number

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Step 2

Add the answer from Step 1 to the numerator

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Step 3

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3 years ago

Angelo has a credit score of 726. According to the following

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Answer:

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Step-by-step explanation:

Because of this fact:

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3 years ago

Read 2 more answers

Natalie walked 3/5 mile in 1/2 hour. How many miles did she walk per hour

Marizza181 [45]

Answer:

She walked 1 1/5 miles per hour.

Step-by-step explanation:

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3 years ago

Suppose a research firm conducted a survey to determine the average amount of money steady smokers spend on cigarettes during a

olchik [2.2K]

Answer:

option (b) 0.0228

Step-by-step explanation:

Data provided in the question:

Sample size, n = 100

Sample mean, μ = $20

Standard deviation, s = $5

Confidence interval = between $19 and $21

Now,

Confidence interval = μ ± $z\frac{s}{\sqrt n}$

thus,

Upper limit of the Confidence interval = μ + $z\frac{s}{\sqrt n}$

or

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or

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Hence,

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3 years ago