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horrorfan [7]
3 years ago
14

3 is subtracted from a number. What is the algebraic expression?

Mathematics
2 answers:
Stels [109]3 years ago
8 0

Answer:

Naruto and luffy and Goku will kill you.

Step-by-step explanation:

BlackZzzverrR [31]3 years ago
7 0

Answer:

n-3;

n = some number

Step-by-step explanation:

hope this helps...

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M is between L and C, LM= 11, MC= 2x+5, and LC= 6x-6, what is MC?
Margarita [4]
MC=16... Use this equation to solve for X:  LM+MC=LC... Then sub the value of X into the equation for MC to find your answer.
5 0
3 years ago
During migration a butterfly can travel 30 miles in 1 hour. Which graph best represents y the number of miles a butterfly can tr
son4ous [18]

Answer:

y = 30m and x = 1 h

Step-by-step explanation:

mrsdoughty1 deserves the credit

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3 years ago
BRAINLIEST FOR CORRECT ANSWER, IM FAILING SCHOOL AND NEED HELP ASAP. EVEN OFFICIAL HELP COUNTS
Delvig [45]

Answer:

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Step-by-step explanation:

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3 years ago
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A set of city temperatures in April are normally distributed with a mean of 19.7 degrees Celsius and a standard deviation of 2 d
Sati [7]

Answer:

19.77% of average city temperatures are higher than that of Cairo

Step-by-step explanation:

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.

In this question, we have that:

\mu = 19.7, \sigma = 2

What percentage of average city temperatures are higher than that of Cairo?

This is 1 subtracted by the pvalue of Z when X = 21.4.

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

Z = \frac{21.4 - 19.7}{2}

Z = 0.85

Z = 0.85 has a pvalue of 0.8023

1 - 0.8023 = 0.1977

19.77% of average city temperatures are higher than that of Cairo

6 0
3 years ago
A fisherman can row upstream at 5mph and downstream at 10mph he started rowing upstream until he got tired and then rowed downst
AlekseyPX

We have been given that the upstream speed is 5 mph and the down stream speed is 10mph.

Let the fisherman traveled a distance of x miles.

The total time of the trip is 6 hours.

Relations between speed (s), time (t) and distance (d) is s = \frac{d}{t}

Hence, t= \frac{d}{s}

Time upstream +  time downstream = 6

\frac{x}{5} +\frac{x}{10} =6

lcm = 10

\frac{2x+x}{10} =6

=> \frac{3x}{10} =6

Cross multiplying, 3x= 60

x = 20 miles .. Answer.

8 0
3 years ago
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