MATHEMATICS HIGH SCHOOL

- 5x = -x - 48
x = -11
X = 12

Answers

Answer 1

Answer:

Answer:

B- x=12

Step-by-step explanation:

-5x=-x-48

-12+-48

-12. -12

-60=-5x

-5. -5

x=12

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An elementary school is having a reading contest, to see which class can read the most number of minutes over the month. Each week, the teachers add up the number of hours their students have read at home and in school. What is the best way to display these weekly totals to show which class is ahead in the contest?A. bar graph
B. scatterplot
C. box-and-whisker plot
D. histogram

Answers

The best way to display the weekly totals to show which class is ahead in the contest is A. Bar Graph

Each bar will represent a different class. They can they compare which class the more hours students read.

A textbook company will ship a box of textbooks to college students. The weight of the box in pounds can be determined by the function w(x) = 7.5x + 2, where x is the number of textbooks in the box. The company requires a student to order at least 2 books but not more than 6 books. What is the range of the function for this situation? *A. 2 ≤ x ≤ 6
B. 17 ≤ y ≤ 47
C. {17, 24.5, 32, 39.5, 47}
D. {2, 3, 4, 5, 6}

Answers

The range of the function for this situation is 17 ≤ w ≤ 47

An equation is an expression used to show the relationship between two or more variables.

Let x represent the number of textbooks in the box

The company requires a student to order at least 2 books, hence:

x ≥ 2.

w(2) = 7.5(2) + 2 = 17

Also they do not require more than 6 books, hence:

x ≤ 6

w(6) = 7.5(6) + 2 = 47

The range of a function is the set of possible dependent variables.

Hence, the range of the function for this situation is 17 ≤ w ≤ 47

Find out more on range at: brainly.com/question/14145389

Answer:

I think its D

Step-by-step explanation:

It's obviously not A, because A has an x instead of y. B makes no sense because the range is 2-6. C makes no sense. D is the only logical answer.

(-47) - 33 ÷ (-3) - 3 × (-7)

Answers

Final answer:

To simplify the expression (-47) - 33 ÷ (-3) - 3 × (-7), use the order of operations (PEMDAS/BODMAS) to calculate step by step. The simplified expression is -15.

Explanation:

To simplify the expression (-47) - 33 ÷ (-3) - 3 × (-7), we need to follow the order of operations (PEMDAS/BODMAS).

PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right).

First, evaluate the division: 33 ÷ (-3) = -11.
Next, evaluate the multiplication: 3 × (-7) = -21.
Now, we have (-47) - (-11) - (-21).
Since we have double negatives, we can simplify this to -47 + 11 + 21.
Finally, we add the numbers: -47 + 11 = -36, and -36 + 21 = -15.

Therefore, the simplified expression is -15.

Learn more about simplifying expressions here:

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The answer is -15(negative 15)

Serious answers only :) 30 points!

Answers

Okay, using the pythagorean theorem, we can see that the side the both triangles share is... 3.2.

Using the pythagorean theorem again, we do

a^2+b^2=c^2

(3.2)²+a²=6²
10.24+a²=36
a²=25.76

√a²=√25.76
a=5.07543≈ 5.1

Hope this helps!

I believe the answer is 5.1

Solve for x. 5x = -25 x = -125 x = -30 x = -20 x = -5

Answers

The solution of the given equation is x = -5

So, the correct solution for x is x = -5.

Given is an equation 5x = -25, we need to solve for x.

We must place the variable x on one side of the equation in order to solve the equation 5x = -25 for x.

The objective is to identify the x value that solves the equation.

Here is how to calculate the equation step by step:

Start with the first step's equation, 5x = -25.

Step 2: We want to remove the 5th coefficient from x in order to isolate it. In order to accomplish it, we'll use the inverse operation, which involves multiplying both sides of the equation by 5:

(5x) / 5 = (-25) / 5.

Step 3: The right side becomes -5 while the left side becomes x.

x = -5.

Step 4: At this point, we know that x has the value -5.

Hence, the answer to the equation is x = -5.

Learn more about equation click;

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x=-5 cause you have divide both sides by 5 so you could get x and -25/5=-5 therefore x=-5 i think...

1.Calculate the amount of heat produced in an electric heater of resistance 1000 ohms if 6A of current is passed through it for 10 minutes.. 2.400J of heat is produced in 4s in a 4 ohm resistor.Find potential difference across the resistor.. 3. Calculate the power of a source if it produces an energy of 750J in 30s.. 4. Which uses more energy , a 500W TV set in 1 hour or a 1200W toaster in 10 minutes.. 5. Calculate the electrical energy consumed by a 1200W toaster in 10 minutes..

Answers

Power is determined through multiplying the square of the current, resistance and time. it is also determined by dividing energy by time

1. P = I^2 Rt = 6^2*1000*10*60 = 21. 6 MW
2. P = 4000 J/4s = 1000 W
3. P = 750 J/ 30 s = 25 W
4. P = 500 J/3600s = 0.139 W ; P = 1200J/10/60s = 2 W ; toaster needs more power
5. P = 1200 J/ 600s= 2 W

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