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horrorfan [7]
4 years ago
12

Suppose that you are a teacher with a total of 100 students 10 among them come from a disadvantaged and their average in year 1

is 80/100. All of the other students are not considered disadvantaged and have an average of 90/100. What is the overall average for your students in year 1?
Mathematics
1 answer:
IceJOKER [234]4 years ago
4 0

Answer:

  89/100

Step-by-step explanation:

The average weighted by the number of students is ...

  (90(0.90) +10(0.80))/100 = (81 +8)/100 = 89/100

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Point (k, -3) lies on the line whose equation is x-2y=-2. What is the value of k?
natita [175]

Answer:

Substitute, <em><u>y = -3</u></em> and <em><u>x = k</u></em> on the equation.

=> k - 2×(-3) = -2

=> k = -2 + (-6)

=> k = - 8

=================

<h2>HOPE U UNDERSTOOD</h2><h3>MARK AS BRAINLIEST ONE</h3>

Any Doubts? Please COMMENT

7 0
3 years ago
Solve the equation 4/8y=8/3 for y
Solnce55 [7]

Answer:

y = \frac{16}{3}

Step-by-step explanation:

In order to solve for y, you need to isolate the y in the equation. Thus, to get rid of the \frac{4}{8} multiplied by the y, multiply both sides by the reciprocal, \frac{8}{4}. Then, reduce the fraction.

\frac{4}{8} y = \frac{8}{3} \\(\frac{8}{4} )\frac{4}{8} y = \frac{8}{3} (\frac{8}{4})\\y = \frac{64}{12} \\y = \frac{16}{3}

Thus, y = \frac{16}{3}.

6 0
3 years ago
The numbers represented by variables w and y on the number line are integers.
mixas84 [53]

<u>Option A)</u> when y=6 and w= 2, <u>Option B)</u> when y=4 and w=-1 are the TWO correct choices.

Step-by-step explanation:

The given inequality is w<x<y and x>2.

<u>step 1</u>: let us <u>assume that x=3</u>, since it is given that x>2.

<u>step 2</u>: substitute the value of x=3 and each options in the inequality

<u>step 3</u>: option A) w=2, y=6. Then w<x<y = 2<3<6 (the condition satisfies).

            option B) w= -1, y=4. Then w<x<y = -1<3<4 (the condition satisfies).

            option C) w= 0, y=2. then w<x<y ≠ 0<2<2 (does not satisfies).

            option D) w= -2, y=0. then w<x<y ≠ -2<2<0 (does not satisfies).

            option E) w= -4, y= -1. then w<x<y ≠ -4<2<-1 (does not satisfies).

5 0
3 years ago
How do I find the total perimeter of a odd shape
Stella [2.4K]
The area of the irregular shape is the area of the two rectangles added together. Use the measure calculate feature of Geometer's Sketchpad to add the areas. The perimeter of the irregular shape is equal to the sum of the six segment around the outside of the figure.
3 0
3 years ago
-1 + 3 (x + 2) =5(1 + 8x)<br> my papers due at 4 and i dont understand the question or how to do it
Burka [1]

Answer:

x = 0

Step-by-step explanation:

-1 +3(x + 2) = 5(1 + 8x)

-1 +3x +6 = 5 + 40x

3x + 5 = 5 + 40x

3x - 40x = 5 - 5

-37x = 0

x = 0

4 0
3 years ago
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