A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

Answers

Answer 1
Answer:

Answer:

5/6

Step-by-step explanation:

2+6+4=12

6+4=10

10/12=5/6

Answer 2
Answer:

Answer:

10/12

Step-by-step explanation:

is the answer or 5/6


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A bakery packages 868 muffins into 32 boxes how many muffins in each box?

Answers

it will be 27 muffins in  each box
To find the unit rate, in other words how many muffins are in each box, divide 868 by 32.868/32 = 27.125So, there are 28 muffins in each box.

Jack is 4 times as old as lacy. 4 years ago the sum of their ages was 22. How old are they now

Answers


4 x 22 =?

the question mark is how old they'll be.

What is the equation of a line that passes through the point (8,1) and is perpendicular to the line whose equation is y= -2/3 x + 5? A) 2X+3Y= 15
B) Y= -2/3x + 11
C) Y= 3/2x+ 11
D) y= 3/2x - 11

I am thinking its B but am not sure. I don't wanna retake this so I wanna be 100%. Thanks!!

Answers

Answer:

The equation of this line would be y = 3/2x - 11, which is the answer D.

Step-by-step explanation:

In order to find this equation we must first find the slope of the original line. The original slope (the coefficient of x) is -2/3, which means the new slope will also be 3/2 because perpendicular lines have opposite and reciprocal slopes. Now, we can use this slope along with the point in point-slope form to find the equation of the line.

y - y1 = m(x - x1)

y - 1 = 3/2(x - 8)

y - 1 = 3/2x - 12

y = 3/2x - 11

The formula c=5(f-32) ➗ 9 gives the Celsius temperature in c degrees for a Fahrenheit temperature of f degrees. What is the Celsius temperature for a Fahrenheit temperature of 122 degrees?

Answers

Answer : The Celsius temperature is, 50 degree.

Step-by-step explanation :

Formula used :

c=(5)/(9)* (f-32)

where,

c = Celsius temperature

f = Fahrenheit temperature

As we are given that the Fahrenheit temperature is 122 degree. Now we have to determine the Celsius temperature.

Now put the value of Fahrenheit temperature in above formula, we get:

c=(5)/(9)* (122-32)

c=(5)/(9)* (90)

c=50

Thus, the Celsius temperature is, 50 degree.

The required Celsius temperature for a Fahrenheit temperature of 122 degrees is 50 degrees Celsius.

To find the Celsius temperature for a Fahrenheit temperature of 122 degrees, we can use the given formula: c = 5(f - 32) / 9.

Substituting the Fahrenheit temperature of 122 degrees into the formula, we have:

c = 5(122 - 32) / 9.

Now we can simplify the expression:

c = 5(90) / 9,

c = 450 / 9,

c = 50.

Therefore, the Celsius temperature for a Fahrenheit temperature of 122 degrees is 50 degrees Celsius.

Learn more about temperature here:

brainly.com/question/12897774

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PH is given by the formula pH = -log [H+]where (H+) is the concentration of
hydrogen in moles per liter. If the pH of
Bill's swimming pool is 7.8 and the pH of
Maura's swimming pool is 7.2, whose
pool has a greater concentration of
hydrogen? How many times greater is it?

Answers

Answer:

  • Maura's
  • 4 times

Step-by-step explanation:

The logarithm function is monotonic with a positive slope everywhere. So, the logs of numbers are in the same order as the numbers themselves. pH is the negative of the logarithm, so the pH values are in the reverse order of the numbers themselves.

Maura's pool has a lower pH, so will have a higher concentration of hydrogen ions.

The log of a ratio is the difference of the logs. Here, the difference of the logs is 7.8 -7.2 = 0.6, so the ratio of H+ concentrations in the two pools is ...

  10^0.6 ≈ 4.0

Maura's pool has 4× the H+ concentration of Bill's pool.

For her cell phone plan, Heather pays $30 per month plus $0.05 per text. She wants to keep her bill under $60 per month. Which inequality represents the number of texts, t, Heather can send each month while staying within her budget? A)t < 600. B) t > 600. C) t < 1,800. D) t > 1,800

Answers

so 30+0.05t<60 is the equation so
subtract 30 from both sides
0.05t<30
multiply by 100
5t<3000
divide by 5
t<600
she can send less than 600 texts to stay below 60 dollars
so the answer is B