MATHEMATICS MIDDLE SCHOOL

Cindy needs to order 150 invitations which are sold in packs of 20. How many packs does Cindy need to buy?A) 6
B) 7
C) 8
D) 9

Answers

Answer 1
Answer:

The question is an illustration of divisions.

Cindy needs to buy (c) 8 packs

The given parameters are:

\mathbf{Invitation = 150}

\mathbf{Pack = 20}

The number of packs is calculated by dividing the total number of invitation by the number of invitations in each pack.

So, we have:

\mathbf{n = (Invitation)/(Pack)}

\mathbf{n = (150)/(20)}

\mathbf{n = 7.5}

Cindy needs 7.5 packs.

Since the packs cannot be split, Cindy must buy the closest number of packs greater than 7.5

So, we have:

\mathbf{n = 8}

Hence, Cindy needs to buy (c) 8 packs

Read more about divisions at:

brainly.com/question/1549111
Answer 2
Answer: the answer is 8 because:
you need 5 packs of 20 to get to 100 and then you still need 50 more so you have to get three more packs to make it to 150 and then you have some invitations left over but thats okay.

Related Questions

Which function is nonlinear? A. y=3x+1/2 B. y= -x C. y=2x(x-4) D. y=1/2x-7
Pliz help me out :)():
PLEASE HELP ME I NEED IT:
Twice the sum of a number and eight
em saves at least 20% of what she earned for each week.is she earns $140 each week for 4 weeks wich inequality describes the total amount she saves

Identify the terms,like terms,coefficients,constants

7-5x+1

Answers

Terms
7
-5x
1
Like Terms
7
1
Coefficients
-5
Constants
7
-1
the word coefficient means the number(s) in front of the variable

Which ordered pair is a solution of the equation?3x+3y= -x+5y

a) only (1,2)
b) only (2,4)
c) both (1,2) and (2,4)
d) neither

Answers

First simplify the equation.

3x+3y= -x+5y

4x=2y

2x=y

y=2x

Means that the y value is 2 times the x value.

answer: C but there are more solutions than just (1,2) and (2,4)

A square tile measures 14 inches on each side. If 1 inch = 2.54 centimeters, determine the area of the tile in square centimeters. Round the answer to the nearest square centimeter.A. 1,265 cm2

B. 498 cm2

C. 196 cm2

D. 36 cm2

Answers

Answer:

  A.  1265 cm²

Step-by-step explanation:

You want the area in square centimeters of a 14-inch square tile.

Area

The area of a square is the square of the side length. The side length in cm is ...

  (14 in)×(2.54 cm/in) = 35.56 cm

Then the area of the square is ...

  A = (35.56 cm)² = 1264.5136 cm²

The area of the tile is about 1265 square centimeters, choice A.

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A total of 562 tickets were sold for the school play. They were either adult tickets or students tickets. There were 62 more student tickets sold than adult tick. how many adult tickets were sold ?

Answers

answer: there were 250 adult tickets sold.

explanation: write an equation for this problem.

x + (x + 62) = 562
keep in mind that x is the number of adult tickets, and (x + 62) is the number of student tickets.

now solve.

x + (x + 62) = 562.
2x + 62 = 562
2x = 562
x = 250

20 BIG POINTS! Help me with two questions please! The first two files are actually ONE question. Explain why your answers seem to be correct?

Answers

The first one is A,B,and D because for A a function on a graph rises from left to right.B because the input or x is not repeating so just remember that too many x's ain't right but more than one y or output is okay.D because each x is not repeating which is a no no in functions.The second question is the first one is a function and the rest no because the first one none of the x or repeating the other ones their x in their data set is repeating.
a function is where you input something and get out another thing
generally you are talking about one-to-one functions where for every input you get exactly one output
x is input and y is input
basicaly, x never repeats

2 ways to find a function
1. if on a graph, then it must pass the vertical line test whre if you draw a vertical line ANYWHERE on the graph, then it must pass through the graph of the equation no more than one times
2. if on a set then make sure that x doesn't repeat with a different y so if you had (2,3) and (2,4) then that is not a function


A is a function since passes vertical line test
B is a function since x doesn't repeat
C is NOT a function since x=3 has a y value of 5 and -2
D is NOT a function since you have the points (2,2) and (2,6)

so select A and B






basically just lok at the first number of each ordered pair (x,y) and make sure the first number never repeats with a different second number (x,y) and (x,z) is not function if z is not equal to y


so
1 is a function since the numbers never repat
2 is NOT a function since we have the points (2,3) and (2,5)
3 is NOT a function since we have th points (4,2) nd (4,8) and the points (6,3) and (6,6)
4 is NOT a function since we have the points (6,8) and (6,4)
so only first is function



ANSWERS
so the functions are
A and B for first quetsion
#1 fors econd

Erin runs laps each day on a track that is 4/8 miles long. This week, she ran 4 4/8 miles on the track. How many laps did she run?

Answers

First, we're going to convert the mixed number into a/n improper fraction.
(4 × 8 ) + 4 = 36/8

Now we're going to divide 36/8 by 4/8 since 4/8 = 1 lap.
36 / 4 = 9.

That is how we get our answer, 9 laps.

Our final answer is 9 laps.

Hope this helps!~
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