Mary says the pen for her horse is an acute right triangle is this possible explain

Kyle works at a donut factory, where a 10-oz cup of coffee costs 95cents¢, a 14-oz cup costs $1.15, and a 20-oz cup costs

Hitman42 [59]

Let s, m, L represent the number of small, medium, and Large cups of coffee Kyle filled.
  s +m +L = 35 . . . . . . . . . . . . . . . served 35 cups
  10s +14m +20L = 544 . . . . . . . . using 544 ounces of coffee
  .95s +1.15m +1.50L = 43.60 . . . while collecting $43.60

Solving these 3 linear equations in 3 unknowns by your favorite method, you find
  Kyle filled 6 small cups (10 oz)
  Kyle filled 16 medium cups (14 oz)
  Kyle filled 13 Large cups (20 oz)

_____
Elimination is a reasonable way to start. Subtract 10 times the first equation from the second, and 0.95 times the first equation from the third. Then you have
  4m +10L = 194
  .2m +.55L = 10.35
Now, you can subtract .05 times the first of these equation from the last to get
  .05L = .65
  L = 13
Back-substituting gets you the values of the other variables.

7 0

3 years ago

Read this word problem.

mylen [45]

Answer:

ronnie is playing a card game called subzero , where the goal is to get the lowest possible score.in the first round ,ronnie scored

Step-by-step explanation:

3 0

1 year ago

Read 2 more answers

My chemistry book is 8 years older than my Algebra book. In 6 years the chemistry book will be twice as old as the Algebra book.

4vir4ik [10]

Answer:

x + 14 = 2(x + 6)

x = 2

Step-by-step explanation:

Let

Algebra book age = x

Chemistry book age = x + 8

In 6 years time

Chemistry book age = x + 8 + 6

= x + 14

Algebra book age = x + 6

the chemistry book will be twice as old as the Algebra book.

x + 14 = 2(x+6)

x + 14 = 2x + 12

x - 2x = 12 - 14

- x = - 2

Divide both sides by -1

x = 2

Check:

Chemistry book age = x + 14

= 2 + 14

= 16

Algebra book age = x + 6

= 2 + 6

= 8

6 0

3 years ago

Use Word to documents your comparison of the two years and explain your findings in at least two paragraphs. Including: Explain

pickupchik [31]

In statistics, the standard deviation deviation may be a measure of the quantity of variation or dispersion of a group of values. The margin of error may be a statistic expressing the number of sampling error within the results of a survey. The correlation could be a statistical measure of the strength of the connection between the relative movements of two variables.

Given nothing and that we need to explain standard deviation. margin of error, correlation coefficient .

Standard deviation

In statistics, the standard deviation may be a measure of the number of variation or dispersion of a group of values. an occasional variance indicates that the values tend to be near the mean of the set, while a high variance indicates that the values are detached over a wider range.

Formula: $\sqrt{(x-x bar)^{2}/N }$

where x bar is mean and N is size of population.

Margin of error

The margin of error may be a statistic expressing the quantity of sampling error within the results of a survey. The larger the margin of error, the less confidence one should have that a poll result would reflect the results of a survey of the complete population.

Formula for M=z*s/ $\sqrt{n}$

here z is z value of Z score , s is variance , n is that the sample size.

Correlation coefficient

In statistics, the Pearson parametric statistic ― also called Pearson's r, the Pearson product-moment parametric statistic, the bivariate correlation, or colloquially simply because the coefficient of correlation ― could be a measure of linear correlation between two sets of information.

Formula=∑ $(x_{i} -x bar)(y_{i} -y bar)/\sqrt{}$ ∑ $(x_{i} -x bar)^{2}$ ∑ $(y_{i}-ybar) ^{2}$