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maksim [4K]
3 years ago
7

Calculator

Mathematics
1 answer:
frez [133]3 years ago
5 0

Answer:

x=90=9.49

Step-by-step explanation:

compare with yours

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Write a division problem that has a two digit quotient that is greater than 40 but less than 50.
trasher [3.6K]

Let

x--------> Dividend

y-------> Divisor

Q-------> Quotient

we know that

\frac{x}{y} = Q

solve for x

x=Q*y

40 < Q < 50

Examples

example 1

Q=45\\ y=4

Find the value of x

x=45*4\\ x=180

A division problem is equal to

\frac{x}{y} =\frac{180}{4} \\\\ = 45

example 2

Q=42\\ y=10

Find the value of x

x=42*10\\ x=420

A division problem is equal to

\frac{x}{y} =\frac{420}{10} \\\\ = 42

8 0
3 years ago
Read 2 more answers
A park has 22 elm trees. Elm leaf beetles have been attacking the trees. After removing several of the diseased trees, there are
serg [7]

Answer: 9 elm trees were removed.

Step-by-step explanation:

Let x represent the number of elm trees removed.

The total number of elm trees in the park is 22. Elm leaf beetles have been attacking the trees. After removing several of the diseased trees, there are 13 healthy elm trees left. The equation to find the number of elm trees that were removed would be

x + 13 = 22

Subtracting 13 from the left hand side and the right hand side of the equation, it becomes

x + 13 - 13 = 22 - 13

x = 9

3 0
3 years ago
Which of the following are true about regression with one predictor variable (often called "simple regression")? A. After conduc
jeyben [28]

Answer:

A

Step-by-step explanation:

Simple linear regression is a statistical method that summarizes and study relationships between two continuous quantitative variables.

One variable is regarded as the predictor, explanatory, or independent variable and the other variable is regarded as the response, outcome, or dependent variable.

Two variables can be denoted by X and Y.

Among the given options, the correct option is A. After conducting a hypothesis test to test that the slope of the regression equation is nonzero, you can conclude that your predictor variable, X, causes Y

3 0
3 years ago
Simplify the expression:<br><br> 4(9p + 1)
Tju [1.3M]

Answer:

36p+4

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
This is what I am supposed to do, I’m confused on what to do on 3,4, and 5. PLEASE HELP ASAP!!!!!! 30 POINTS!!!!!
max2010maxim [7]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

To calculate m use the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

3

Using (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (- 3, 6)

m = \frac{6-0}{-3-0} = \frac{6}{-3} = - 2

Since the line passes through the origin (0, 0) then y- intercept is 0

y = - 2x ← equation of line

4

let (x₁, y₁ ) = (6, 0) and (x₂, y₂ ) = (0, 3)

m = \frac{3-0}{0-6} = \frac{3}{-6} = - \frac{1}{2}

note the line crosses the y- axis at (0, 3) ⇒ c = 3

y = - \frac{1}{2} x + 3 ← equation of line

5

let (x₁, y₁ ) = (0, 3) and (x₂, y₂ ) = (-2, - 3)

m = \frac{-3-3}{-2-0} = \frac{-6}{-2} = 3

note the line crosses the y- axis at (0, 3) ⇒ c = 3

y = 3x + 3 ← equation of line

7 0
3 years ago
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