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2 years ago

Here is a list of numbers: 7, 19, 3, 18, 15, 3, 14 ,20 ,2 ,12 State the median.

Mathematics

1 answer:

Evgesh-ka [11]2 years ago

8 0

Answer:

13.

Step-by-step explanation:

2, 3, 3, 7, 12, 14, 15, 18, 19, 20

3,3,7,12,14,15,18,19

3,7,12,14,15,18

7,12,14,15

12,14

^ Mean: 13

Uhh it's easy, did you really pay attention at ALL during the lesson. Literally don't judge on here but really!!!?

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Two cars are driving toward each other from opposite directions. If one is driving 55 mph, the other is driving 60 mph and the c

Korvikt [17]

Set 500 to sum of distances traveled by both cars.
$55t + 60t = 500 \\ 115t = 500 \\ t = (500/115) = 4.3$

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2 years ago

A car's speedometer has a percent error of 5%. The speedometer currently shows that the car is traveling at a speed of 60 mph.

Minchanka [31]

Answer:

The actual speed of the car is either 57 mph or 63 mph

Step-by-step explanation:

Given as :

The measured speed o the car = 60 mph

The percentage error in speedometer = 5 %

Let The actual speed of car = x mph

Now, percentage error = $\dfrac{\textrm actual value - \textrm measured value}{\textrm measured value}$ × 100

So, $\frac{5}{100}$ = $\frac{x - 60}{60}$

or, $\frac{5}{100}$ × 60 = x - 60

Or, 3 = x - 60

∴ x = 63 mph

Hence The actual speed of the car is either 57 mph or 63 mph . Answer

8 0

3 years ago

4 1/2 cups converted to fluid ounces

Dmitry_Shevchenko [17]

Answer:

4.5 cup to oz is 36 FLUID OUNCES

6 0

3 years ago

Three of these expressions give the distance between points A and B on the number line. Which expression does NOT?

NARA [144]

answer: was willing to help but you should’ve added a picture or added the choices there was to pick from because there isn’t much info.

7 0

3 years ago

A hot air balloon went from an elevation of 6,678 feet to an elevation of 3,438 feet in 48 minutes. What was its rate of descent

gregori [183]

Answer:

The rate of descent is $-67.5\frac{feet}{minute}$

Step-by-step explanation:

we know that

The formula to calculate the rate or slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

Let

x------> the time in minutes

y----> the elevation in feet

we have

$A(0,6,678)\ B(48,3,438)$

Substitute the values

$m=\frac{3,438-6,678}{48-0}$

$m=\frac{-3,240}{48}$

$m=-67.5\frac{feet}{minute}$

4 0

3 years ago