MATHEMATICS HIGH SCHOOL

PLEASE HELP ME WITH MY MATHS HOMEWORK BELOWif you answer it correctly i will rate you 5 stars and brainiest

Answers

Answer 1

Answer:

Answer:

a) 52%

b) 7

Step-by-step explanation:

Total no of grids = 25

Shaded grids = 13

$a) \nPercent \; of \: Shaded\: grids = (13)/(25) * 100 = 13* 4 = 52\%\n\nb)\n80\% \: of \: 25 =0.80* 25 = 20\nNo \; of \: squares\: more\: than \: 13 = 20 - 13 = 7$

Related Questions

Solve the system of linear equations below.6x + 3y = 33 4x + y = 15 x = 2, y = 7 x = -13, y = 7 x = - 2 3 , y = 12 2 3 x = 5, y = 1
What is the simplified form of the quantity of x plus 5, all over the quantity of 3x plus 4 + the quantity of x plus 4, all over the quantity of x plus 3?
6.51875 rounded to the nearest tenth
How to solve equation with one variable
The perimeter of a basketball court is 114 meters and the length is 6 meters longer than twice the width. What are the length and the width?

Choose the fraction in simplest form that correctly expresses this ratio
27 to 54

Answers

Answer:

1/2

Step-by-step explanation:

Fraction

27/54

Divide both the top and bottom by 27

27/27 = 1

54/27 = 2

1/2

A class of 25 students took a math test. Ten students had an average of 88. The other students had an average of 76. What is the average of the whole class?A) 78.2
B) 80.8
C) 81.7
D) 82.5

Answers

Answer:

The average of the whole class is 80.8.

The correct answer is B)

Step-by-step explanation:

To solve this problem, it is very important to understand the phrase: "Ten students had an average of 88". Let's see an example.

Imagine that three students in the class took a test and their scores were: 80, 89 and 95. To calculate the average of they three we must divide the sum of the scores by the total number of scores.

$average=(80+89+95)/(3)=(264)/(3)=88$

The previous value is the average of the three students. Now, if we say that each student got 88, the average would be 88.

$average=(88+88+88)/(3)=(264)/(3)=88$

The previous expression could be simplified as:

$average=(88* 3)/(3)$

Where, the number 3 means the number of students.

With that in mind, the phrase "Ten students had an average of 88" could be written as:

$average_(10\, \, students)=(88+88+88+88+88+88+88+88+88+88)/(10)$

$average_(10\, \, students)=(88* 10)/(10)=88$

On the other hand, the phrase "The other students had an average of 76" means that from the 25 students, 15 students got 76 (25 - 10 = 15), and could be written as:

$average_(15\, \, students)=(76+76+76+76+76+76+76+76+76+76+76+76+76+76+76)/(15)$

$average_(15\, \, students)=(76* 15)/(15)=76$

Finally, to calculate the total average of the 25 students we must divide the sum of the scores of all students by the total number of scores. The sum would be: 88+88+88+88+88+88+88+88+88+88+76+76+76+76+76+76+76+76+76+76+76+76+76+76+76, which equals $88* 10+76* 15$ . The total number of scores would be: 25.

$average_(total)=(88* 10 + 76* 15)/(25)$

$average_(total)=(880 + 1140)/(25)$

$average_(total)=(2020)/(25)$

$average_(total)=80.8$

Thus, the average of the whole class is 80.8. The correct answer is B)

The answer is B. 80.8

Find the range of f(x) = 5 - |x - 4|.

Answers

Y is less than or equal to 5.

Final answer:

The range of the absolute value function f(x) = 5 - |x - 4| is (-∞ , 5] because the function will always be less than or equal to 5, but there's no lower limit as the function will decrease indefinitely as |x - 4| increases.

Explanation:

The function given is f(x) = 5 - |x - 4|, which represents an absolute value function. The range of a function refers to the possible values of f(x) or y in the function. In general, the absolute value function has a range of all non-negative numbers. However, because the function is subtracted from 5, the values of this particular function will decrease as x moves away from 4, in either direction.

Therefore, the maximum value of the function occurs when the absolute value equals to zero (i.e., x = 4), then f(x) = 5 - 0 = 5. As you move away from 4, the absolute value increases and thus subtracts more from 5, making f(x) smaller. So, f(x) will always be less than or equal to 5, but there is no lower limit, as the function will continue to decrease indefinitely as |x - 4| increases. Hence the range of the function f(x) = 5 - |x - 4| is (-∞ , 5].

Learn more about Range of Function here:

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What is answer to 12=4x what is x

Answers

Division Property of Equality.
Always use opposite operation with side that contains variable.

Isolate variable.
Divide 4 by 4 to get it by itself.

Now do the same to other side.
$12/4=3\nx=3$

12 = 4 x / / / Divide each side by 4. / / / 3 = x .

Miranda is packing eggs in cartons. Each carton holds 12 eggs. She has already filled 3 cartons. How many more eggs does she need to fill at least 17 cartons?

Answers

carton = 12

12x17=204

miranda needs 204 more eggs to fill 17 egg cartons

she need 204 more . I hope it help.

Which set of polar coordinates describes the same location as the rectangular coordinates (0, -2)

Answers

Polar coordinates identifie the points of the plane by a distance from the reference point and an angle from a reference direction.

In this case the distance of (0,-2) from the origin is 2 and the anglefrom the x-axis is 180°. So the polar coordinates are (2, 180°)

(-2, 90 degrees) on apex