A roller coaster carries riders up a ramp that is 39 meters long

What is the mean ? i don’t need work but it could help

lapo4ka [179]

Answer:

The median is the middle number; found by ordering all data points and picking out the one in the middle.

You want to put the numbers in order:

47, 49, 49, 50, 52, 57, 57, 57, 61

Then you go one number at a time from both ends until you get into the middle:

47, 49, 49, 50, 52, 57, 57, 57, 61

So the answer is 52.

Tip: when you do this and you are left with two numbers that are in the middle, add them and divide them by 2.

5 0

3 years ago

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Three teachers buy prizes to put in the prize bin at school. Mrs. Maiers spends $7.68 on stickers.

SashulF [63]

Hi there! The answer to this problem would be 36.64$.

Step By Step:

So there is three teachers and they all brought something.

_____________________________________

| Mrs.Maiers | 7.68$ |

| Mr.Lang | 11.52$ |

| Mrs.Connor | 17.64$ |

______________________________________

Total Cost: 36.64

4 0

2 years ago

I need help with this one pls!

Alex73 [517]

Hi there!

$\large\boxed{b = \frac{a}{ac - 1}}$

We can begin by making each fraction have a common denominator:

If we make each have a common denominator of ab, we get:

$\frac{b}{ab} + \frac{a}{ab} = c$

Simplify:

$\frac{a + b}{ab} = c$

Multiply both sides by ab:

$a + b = cab$

Move b to the opposite side:

$a = cab - b$

Factor out b:

$a = b(ac - 1)$

Divide by (ac - 1):

$\frac{a}{ac - 1} = b$

4 0

3 years ago

What is the constant of proportionality in the following equation?<br><br> y=54.3x

Karolina [17]

Answer:

54.3

Step-by-step explanation:

3 0

3 years ago

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The measurement of a pressure valve starts at 36 psi and falls to 30 psi. What is the approximate percent decrease in the readin

lukranit [14]

Answer:the answer is a 17psi

Step-by-step explanation:

6 0

3 years ago