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2 years ago

Ilana ran 2 laps around the field in 8 minutes. What was her average speed, in laps per minute?

Mathematics

2 answers:

Ksju [112]2 years ago

8 0

Answer: She ran 0.25 laps a minute

Step-by-step explanation:

Every minute she runs 0.25 a minute which means that every 4 minutes she runs 1 lap which means if she run for 8 minutes she gets 2 laps

olganol [36]2 years ago

3 0

Answer:

Step-by-step explanation:

what does the O mean

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Mr. Portillo paid $123.75 for nine tickets to the football game. Each ticket costs the same amount. What was

ExtremeBDS [4]

Answer:

Each ticket costs $13.75.

Step-by-step explanation:

$123.75 for 9 tickets

$\frac{123.75}{9}=13.75$

Each ticket costs $13.75.

Hope this helped!! :)

6 0

2 years ago

Read 2 more answers

Ten more than the quotient of a number and 3 is 12.

Ilya [14]

Answer:

Step-by-step explanation:

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2 years ago

What is the slope / rate of change for 2, 5 and -3, 7

Nady [450]

Answer:

$\displaystyle m=\frac{-2}{5}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS 

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (2, 5)

Point (-3, 7)

Step 2: Identify

x₁ = 2, y₁ = 5

x₂ = -3, y₂ = 7

Step 3: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: $\displaystyle m=\frac{7-5}{-3-2}$
[Slope] [Fraction] Subtract: $\displaystyle m=\frac{2}{-5}$
[Slope] [Fraction] Rewrite: $\displaystyle m=\frac{-2}{5}$

4 0

2 years ago

About 2% of the population has a particular genetic mutation. 400 people are randomly selected. Find the mean for the number of

sergeinik [125]

Answer:

200

Step-by-step explanation:

So it'll be 400 ÷ 2 = 200 , and a way to to check your way would be 200 x 2 = 400

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2 years ago

Find the inverse of the given function. (pictured below)

zavuch27 [327]

Answer:

Step-by-step explanation:

f(x) = y = -1/2 × sqrt(x+3)

2y = -sqrt(x+3)

4y² = x + 3

x = 4y² - 3

now renaming this, so that the normal symbols and names are used for this function definition, so that the input variable is called "x" :

f-1(x) = 4x² - 3

basically, just by itself, this function would be defined for all possible real values of x.

but because it is the inverse of the original function, which generates only values of y<=0, then for the inverse function that same range applies for its input variable x

x<=0

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2 years ago