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3 years ago

2) According to Consumer Reports magazine, the costs per pound of protein for 20 major-brand beef hot dogs are

Mathematics

1 answer:

quester [9]3 years ago

4 0

Answer: -0.85

Step-by-step explanation: a = score-mean/ standard deviation

Mean (add them all up and divide by amount) = 18.8745

Standard deviation =

σ2 = Σ(xi - μ)2/N

= 5.333458985499

SCORE = 14.23

= -0.85

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John spent about 12 hours at a water park. He estimated he spent about 40% of the time waiting in line. What would be a reasonab

White raven [17]

40% of 12 hours would be 4.8 hours

4 0

3 years ago

After writing an equation for each of the T-shirt companies, Jill wrote this equation: 30 + 6x = 20 + 8x Why do you think she wr

polet [3.4K]

Answer:

Step-by-step explanation:

she wrote it to solve the total amount spent on both T shirt.

30+6x=20+8x-8x

30+6x-8x=20

30-30-2x=20

-2x=20-30

-2x/-2=-10/-2

3 0

2 years ago

Pls help sixowiskosixo

erma4kov [3.2K]

The given question is a quadratic equation and we can use several methods to get the solutions to this question. The solution to the equation are 3/4 and -5/6 and the greater of the two solutions is 3/4

<h3>Quadratic Equation</h3>

Quadratic equation are polynomials with a second degree as it's highest power.

An example of a quadratic equation is

$y = ax^2 + bx + c$

The given quadratic equation is $24x^2 + 2x = 15$

Let's rearrange the equation

$24x^2 + 2x = 15\\24x^2 + 2x - 15 = 0$

This implies that

a = 24
b = 2
c = -15

The equation or formula of quadratic formula is given as

$y = \frac{-b +- \sqrt{b^2 - 4ac} }{2a}$

We can substitute the values into the equation and solve

$y = \frac{-b +- \sqrt{b^2 - 4ac} }{2a}\\y = \frac{-2 +- \sqrt{2^2 -4 * 24 * (-15)} }{2*24} \\y = \frac{-2+-\sqrt{4+1440} }{48} \\y = \frac{-2+-\sqrt{1444} }{48} \\y = \frac{-2+- 38}{48} \\y = \frac{-2+38}{48} \\y = \frac{3}{4}\\ \\or\\y = \frac{-2-38}{48} \\y = \frac{-40}{48} \\y = -\frac{5}{6}$

From the calculations above, the solution to the equation are 3/4 and -5/6 and the greater of the two solutions is 3/4

Learn more on quadratic equation here;

brainly.com/question/8649555

#SPJ1

7 0

2 years ago

Weather

Crank

Answer:

It snowed for 6 days in November

Step-by-step explanation:

Since there are 30 days in November

and 20 goes into 100 five times,

30/5=6, so in november snow fell for 6 days

5 0

3 years ago

The quotient of the square of a number and 7

slega [8]

Answer:

(x/7)

x= quotient of a number

7= the denominator of x

8 0

2 years ago