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Alika [10]
3 years ago
5

Maya's school held an aluminum collection program in which they collected aluminum and brought it to be recycled. In the first w

eek, Maya collected 4/20 lb of aluminum and her friend Abigail collected 7/8 lb. a. which girl collected more aluminum? b. how much aluminum did the two girls collect?
Mathematics
1 answer:
avanturin [10]3 years ago
5 0
If you put this into the calculator, 4/20 is .2 and 7/8 is .875 therefore Abigail collected more. If you use them as the same denominator, you have 8/40 for Maya and 35/40. And if you add these two numbers together, you get 1.075 which is 43/40 as a fraction
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rewona [7]

Answer:

The mean of the sampling distribution of x is 0.5 and the standard deviation is 0.083.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For the population, we have that:

Mean = 0.5

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Mean = 0.5

Standard deviation s = \frac{0.289}{\sqrt{12}} = 0.083

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3 years ago
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aleksley [76]
The answer is 72.8. in order to solve this problem, you need to use the pythagorean theorem. the equation is c^2-b^2=a^2.

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the square root of 5301 is 72.8079666, rounding to 72.8.
6 0
3 years ago
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garri49 [273]

Answer:

40

Step-by-step explanation:

Step 1: Define

2r(t - 1)

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Step 2: Substitute and Evaluate

2(4) · (6 - 1)

8 · 5

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4 0
3 years ago
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The answer you are looking for is 40 hours. they gave you the answer in the statement above when they said he gets time-and-a-half for any hours beyond 40. So he only worked 40 regular pay hours and got 4 hours overtime for time-and-a-half.
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3 years ago
Divide. Enter the quotient in simplest form.<br><br> 3/10 ÷ 4/5 =
Tju [1.3M]

Answer:

<h2>3/10 ÷ 4/5 = 3/8</h2>

Step-by-step explanation:

<h2>3/10 ÷ 4/5 = 0.375 = 3/8</h2>
7 0
2 years ago
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