The principal observes 8th grade the following day. Of the 120 students, 42 brought their lunch from home, 72 purchased lunches, and 6 brought a lunch from home and purchased an ice cream. Explain how the principal could use the numbers from 7th grade to predict the 8th grade possibilities.

Answer:

Equivalent expressions: negative numbers & distribution

Step-by-step explanation:

Answer: 105 in^2

Step-by-step explanation: The area of the square is 25 because 5x5=25. The area of each triangle is 20, because to find a triangle it is BxH/2. so 5x8/2=20. Multiply this by four because there are four triangles and add the area of the square. So 20x4= 80. 80+25=105

Answer:

Quotient, remainder, numerator

Step-by-step explanation:

Answer: C , explanation at the bottom

Step-by-step explanation:

Step 1: Find the volume of tank 1

V= Lwh

l= 6in

w= 1.5in

h= 3in

6x1.5x3= 27

Step 2: Find the volume of tank 2

l= 2 in

w= 1.5 in

h= 9 in

2x1.5x9= 27

Step 3: Compare

27=27

answer= C

Explanation: Since they have the same volume, they can hold the same amounts. Using the formula V=lwh, I multiplied the lengths, widths, and heights of both tanks and then compared their volumes.

Answer: I beileve its skewed left after all most of the dots are on the left

Step-by-step explanation:

Answer:

This looks like a skewed right plot.

Answer:

Your answer is: 3:2

Step-by-step explanation:

You can see this because there are 3 black circles shown, and 2 white circles.

Since it goes from black to white you first do black which is 3, then to white which is 2.

Meaning you answer is:

B: 3:2

Answer:

D. 1 3/4

Step-by-step explanation:

Answer:

Area = 45

Step-by-step explanation:

Solve:

Now using the formula if:

x = 7

y = 3

h = 9

Area = (X+Y)(h)

Area = (7+3)(9)

Area = (10)(9)

Area = 90

Kavinsky

Answer:

2.15 or 2

Step-by-step explanation:

Answer:

The total cost of the cleaning service is $180

Step-by-step explanation:

We have, 30% × x = 54

or,

30/100 × x = 54

Multiplying both sides by 100 and dividing both sides by 30,

we have x = 54 × 100/30

x = 180

If you are using a calculator, simply enter 54×100÷30, which will give you the answer.

Answer:

i do believe it is 316 inch

Step-by-step explanation:

Answer:

D. 38

Step-by-step explanation:

Answer:

8to4

Step-by-step explanation:

for every 8 girls there are 4 boys

Answer:

4:8  1:2

Step-by-step explanation:

So 8 boys to 16 girls is 8:16, then you can divide by 2 to get 4:8 becuase 4:8 and 8:16 are equal and 1:2 and 8:16 are equal.

Answer:

d

Step-by-step explanation:

use your brain

Answer:

9 in

Step-by-step explanation:

Side DE is equivalent to side KG

Answer:

Its 4, -3

Step-by-step explanation:

Always go in (x,y)

so you will go right first but the number are positive

then it is 4

then the second cross it occuring lower which is negative

then it is -3

so,

:• 4, -3

Answer: -4, -3

Step-by-step explanation:

To find the solution to a systems of equations on a graph, find the area where the 2 lines intersect, (in other context, come together, or share the same points). In this case, they come together at the point -4, -3.

Answer:

66 in^2

Step-by-step explanation:

Answer:

23

Step-by-step explanation:

its going down lower minus by 6.

the x means the answer/number.

the answer is 23 of what i think

Answer:10

Step-by-step explanation

Because Each string is cut into several pieces of the same length and no string is left over.

Answer: The price of maximum sales is $160

Step-by-step explanation:

This question requires you to find the vertex of this equation. The vertex of a parabola is the point where the parabola crosses its axis of symmetry.

since the coefficient of the [tex]x^2[/tex] term is negative, the vertex will be the highest point on the graph.

this quadratic equation is in standard form: [tex]y = ax^2+bx+c[/tex].

From this, we can derive:

[tex]a = -3[/tex]

[tex]b = 60[/tex]

[tex]c = 1060[/tex]

First, determine the axis of symmetry ([tex]p[/tex] is the variable for the horizontal axis ([tex]x[/tex]) in this instance). This will be our x-coordinate of the vertex.

[tex]p = \frac{-b}{2a}[/tex]

[tex]p = \frac{-(60)}{2(-3)}[/tex]

[tex]p = \frac{-60}{-6}[/tex]

[tex]p=10[/tex]

Then, substitute the axis of symmetry into the function to find the y coordinate of the axis of symmetry. r stands for the variable for the vertical axis in this instance. This will be our y-coordinate of the vertex.

[tex]r = -3(10)^2+60(10)+1060[/tex]

[tex]r = 160[/tex]

As we have determined both the x and y coordinate of the vertex for this equation, we can determine that the maximum point is at [tex](10, 160)[/tex].

the maximum price ([tex]r[/tex]) is 160

Answer:

-1/7

Step-by-step explanation:

-3/5(2/7)+4/35-3/10(2/7)

-3/5(2/7)+4/35-3/10(1/7)

-6/35+4/35-3/5(1/7)

-6/35+4/35-3/35

-1/7

Step-by-step explanation:

there is a right angled triangle.

25+4 = 29 = slant ht^2

h = 5.38 units

(5x5 -28 =56

Step-by-step explanation its simple.

Answer:

34.september has the most adults

35. 30 was the least number of students to visit.

36. the children showed the largest drop between months.

37. 15 more children than adults in may

Step-by-step explanation: if you look at the chart key and the numbers put on the side you will be able to see the differences in the adults and children's information