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olchik [2.2K]
3 years ago
7

A factory makes widgets x and gadgets y. Widgets cost $3 and gadgets cost $5 each to make. The boss wants at least 10 widgets an

d 20 gadgets per day. Total costs need to be at most $300 per day.
Mathematics
1 answer:
IgorLugansk [536]3 years ago
6 0

Answer:

$130

Step-by-step explanation:

Because you multiple 3 and 10 to get 30 and 5 and 20 to get 100 and then add 100+30 to get 130 and that would be 130 dollars in one day

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Simplify the expression fraction with numerator of the square root of negative one and denominator of the quantity three plus ei
Ainat [17]
The right answer for the question that is being asked and shown above is that: "fraction with numerator negative 3 minus i and denominator 10." This is the simplified expression fraction with numerator of the square root of negative one and denominator of the quantity three plus eight times i minus the <span>quantity two plus five times i.</span>
5 0
3 years ago
Read 2 more answers
Please help me thank you
Colt1911 [192]

Answer:

-2\frac{1}{10}

Step-by-step explanation:

So this is simple substitution, \frac{1}{2}(-\frac{1}{5})-\frac{2}{3}(3)=> -\frac{1}{10} - \frac{6}{3}=> -\frac{1}{10} - 2= -2\frac{1}{10}.

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2 years ago
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A study of the amount of time it takes a mechanic to rebuild the transmission for a 1992 Chevrolet Cavalier shows that the mean
Dovator [93]

Answer:

B) 0.0069

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

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.

In this question, we have that:

\mu = 8.4, \sigma = 1.8, n = 40, s = \frac{1.8}{\sqrt{40}} = 0.2846

Find the probability that their mean rebuild time exceeds 9.1 hours.

This is 1 subtracted by the pvalue of Z when X = 9.1. So

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{9.1 - 8.4}{0.2846}

Z = 2.46

Z = 2.46 has a pvalue of 0.9931

1 - 0.9931 = 0.0069

So the answer is B.

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3 years ago
A nursery owner owner buys 8 panes they cost 19.60 she breaks 3 more how much do the 3 cost
shtirl [24]

Answer:

Step-by-step explanation:

45

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18 is D and 19 is C you're welcome
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