Mathematics Middle School

This is 4 questions.

1. Last year there where 1, 435 8th Grade students enrolled at your school. This year there are 1,220. What is the percent change in the number of 8th Grade students?
A: 15% Decrease
B: 215% Decrease
C: 17.6% Decrease
_________________________________________________________________
2. Mia is finally able to upgrade her cell phone. The one she wants cost $220 but she is able to get it 60% off, She has a coupon for an additional 10% off. How much does she pay for her phone?
A: $79.20
B: $66
C: $96.80
________________________________________________________________
3.Last week Kellie ran 28 miles. This week she ran 32 miles. What is the percent change in the number of miles she ran?
A: 12.5% INCREASE
B: 14.3% INCREASE
C: 14.3% DECREASE
_______________________________________________________________
4. A stereo system costs $275. It was on sale for 15% off. The sales person receives a 2% commission. How much of a commission do they receive?
A: $4.68
B: $233.75
C: 46.75

Answers

Answer 1
1) a. 15% decrease
2) a. $79.20
3) b. 14.3% increase
4) a. $4.68

#1 explanation:
1435 - 1220 = 215
215/1435 = 0.1498
0.1498 x 100 = 14.98 = 15%

#2 explanation:
220 x 0.6 = 132
220-132=88
88 x 0.1 = 8.8
88-8.8 = 79.2 $

#3 explanation:
32-28=4
4/28=0.1428
0.1428 x 100 = 14.28 = 14.3%

#4 explanation:
275 x 0.15 = 41.25
275-41.25 = 233.75
233.75 x 0.02 = 4.675 = 4.68 $
Answer 2
A C A B. I THINK IM NOT FOR SURE

Related Questions

if you know the answers pls put this
1
2
3
4
5

Answers

Answer:

1.6 kids

2.6

3.6

4.6

5.6

Step-by-step explanation:

if you count by 6 then you will see that im right

Help Me Please! I will give you 5 stars if your answer is correct!

Answers

The answer is H because it is the highest number in absolute value

Answer:

K

Step-by-step explanation:

you can't have negative distance and K is positive being the greatest

Result
Frequency
Heads, Heads
12/50
Heads, Tails
14/50
Tails, Heads
8/50
Tails, Tails
16/50
Total
50


Based on my data, what is the experimental probability that the family has two dogs or two cats?

Answers

Answer:

Step-by-step explanation:

Please help with this I’ll give brainliest

Answers

A 1/4; just reduce 4/16

Benjamin has enough icing to cover a 12-square-foot cake.
He wants to use the icing to cover 2 equal-sized cakes.
Write an expression that shows the size of each of two cakes
that Benjamin can cover with the icing and solve.
A 2 ÷ 12 = 1/4
B 2 × 12 = 1
C 1/2 ÷ 1/2 = 1
D 2 ÷ 1/2 = 4

Answers

Answer:

The area of each of the 2 equal-sized cakes shall behalf of 12 ft²: 12 ft² / 2 = 6 ft²

Step-by-step explanation:

What is the perimeter of the isosceles triangle shown below? If necessary, round to the nearest hundredth.

Answers

Answer:

35.32

Step-by-step explanation:

12+23.32=35.32

The answer (I think) is 35.32


1.
A season pass has 64 visits. If you purchase a season pass for Soak City, what is
the cost per entry, in dollars, for the same day entry? (show your work)

Answers

Step-by-step explanation:

52.22 this is because if you divide 2350 by the same day pass that is what you get

the. answer is 52.22

Pls help im trying to find the area of this trapezoid

Answers

Area of middle rectangle: 8 x 3 = 24
Area of both right triangles: (8x7)/2 = 28
24 + 28 + 28 = 80 units squared

Answer:

80

Step-by-step explanation:

1st, the trapezoid is broken down into 3 figures meaning we find the area of each and then add them all up.

Triangle 1: (7 * 8)/2 = 28

Triangle 2: (7 * 8)/2 = 28

Rectangle: 3 * 8 = 24

28 + 28 + 24 = 80

Please answer this question!

Answers

I think it's 11.66 if you use the pythagorean theorem

please help!!!
will pick brainliest

Answers

Answer:

122 and 75 i think

Step-by-step explanation:

Answer:

Step-by-step explanation:

The surface area is made up of two triangles and three rectangles

A=10(3)+10(4)+10(5)+2(4)3/2

A=132cm^2

The volume is the area of the end triangle times the depth

V=10(3)4/2

V=60cm^3

Pleaseeeee I beg of you I’ll give brianliest i don’t understand.

Answers

Answer:

x=15

m<ABC=30

m<BCA=60

m<CAB=90

Step-by-step explanation:

to find the value of x I used the 5x+15 since we know that is a right angle. so we equal 5x+15 to 90. you subtract 15 to both sides and then get 5x=75 and then divide by 5 to both sides to get x=15. you the plug in the 15 to the other parts, so 2x=2(15)=30 and 4x=4(15)=60

Answer:

x=15

m<ABC=30

m<BCA=60

m<CAB=90

Step-by-step explanation:

please help me with this i will give u a brainly

Answers

Answer:

125 cm³

Step-by-step explanation:

V= l * w * h

l= 5 cm

w= 5 cm

h= 5 cm

V= 5 * 5 * 5

V= 125

Oscar spent two thirds hour each night doing homework for five nights this week. How many hours of homework did Oscar complete this week?

seven and one half hours
three and one third hours
two and one third hours
one and one fifth hours

Answers

Answer:

The answer is 7.5 hours.

Step-by-step explanation: This is because if he spent 2/3 of every night doing homework for five days then he would spend a lot more than 3 hours and the other answers are even below 3 so thats gotta be incorrect.

Hope this helps.

Answer:

The answer is three and one third hours

Step-by-step explanation:

If Oscar spent two thirds an hour for five nights doing homework, then we would have night one is two thirds, the next night he spent one and one third, the next night would be 2 hours total, then the next night would add another 2/3 making it 2 2/3, finally the last night is two thirds of an hour making it a total of 3 and 1/3 hours spent on homework that week. Hope this helps

what is the solution for the inequality 6>z-4​

Answers

Answer:

z<10

Step-by-step explanation:

Answer:

10>z

Step-by-step explanation:

6+4>z

10>z

Help with this math problem plz thx

Answers

Answer is 3/5

Explanation: There’s three sections that aren’t green, out of five sections. So it’s 3/5.

What should you substitute for y in the second equation (bottom equation) in order to solve the system by the substitution method

Answers

D. if you solve for why on the top equation you get y=0.5x+3
Yes, the answer is D 0.5x +3

Cam was bom weighing 8.6 pounds. Every day, he gained the same amount of weight. After 30 days, he weighed 14.9
pounds. How much did he gain each day? Show the equation you used to find your answer and label what each part of the
equation represents (Assume he gained the same amount each day.)
HELP

Answers

Answer:

So I'm not entirely sure about this one, but I believe he gained 0.21 pounds each day for 30 days

Step-by-step explanation:

Since Cam was born weighing 8.6 pounds and after 30 days weighed 14.9, subtract 14.9-8.6 to find how much he gained.

14.9 - 8.6 = 6.3

Now that we know how much he gained, we have to find out how much he gained per day for 30 days. To do this, divide 6.3 by 30

6.3 / 30 = 0.21

To make sure this answer is correct, multiply 0.21 by 30 and add that to 8.6. It should equal 14.9.

I hope this helps!

So first we find out how much weight Cam gained 14.9 - 8.6 = 6.3 lbs. 6.3 pounds distributed into 30 days would be, 6.3 divided by 30 is 0.21. Cam gained 0.21 lbs every day.

Giving brainliest for answers to both questions :)

Answers

pretty sure it’s karen

Can someone help me with this question?
16 + (c + 17) = (16 + c) + 17

Answers

Answer:

c=∞

Step-by-step explanation:

Well first step we can add 16+17 on both sides

33+c=33+c

-33      -33

c=c

The answer is infinity

Could someone help me solve these problems, step by step please so that I can understand what to do! Please only Answer with real solutions.



The best answer will get Brainliest

Answers

Answer: 4 f

Step-by-step explanatio

can someone do this for me

Answers

Angle 8 and Angle 3 are supplementary same side angles

Answer:

angle 2 and angle 3

Step-by-step explanation:

Supplementary angles means that they add up to 180 degrees. 2 and 3 are on the same straight line that are side by side with each other. This is a hint that they are supplementary angles.

please help me on this math question i will give u a brainly

Answers

there is no equ, we cant answer.

Answer:

Theres no question buddy! try again and we'll help ya out!

Step-by-step explanation:

PLS HELP ASPA I WILL GIVE BRAINIEST FOR FIRST PERSON WHO ANSWERS!!!!!!!
What Is 2 2/3 divided by 5 in the simplest form

Answers

Answer:

8/15 or 0.53

Step-by-step explanation:

Please mark brainliest ty :)

the answer in fraction form is: 8/15 and decimal form to this is .533333333

help me plsss ths is ver confusing to me and i do not get it i dont want to get an f on this test........so can some one plss help me plssssssssssssZZZZZZZ

Answers

Answer:

see the answers

Step-by-step explanation:

to understand thisyou need to know about:fractionlet's solve:to determine the length we have to divide 22 by 3

let's do:

[tex] \frac{22}{3} \\ = 7 \frac{1}{3} \: feet \: [/tex]

let's the pieces be p

according to the question

[tex] \sf 3p = 22 \\ [/tex][tex] \sf divide \: bot h \: sides \: by \: 3 : \\ \sf \frac{3p}{3} = \frac{22}{3} \\ p = 7\frac{1}{3} [/tex]

help with this please

Answers

Which one?? Sorry for inconvenience
Which one there is multiple questions.

1.) What’s the height of the base?

2.) What’s the height of the prism or pyramid.

Answers

Answer:

Step-by-step explanation:

The height of the triangle is the height of the base

Height of the base = 16 m

Height of the prism = 20 m

The height of the base is 16 and the height of the prism is 20 :)

Find the area of each composite figure. Show ALL formulas required to solve and label the answer.

Answers

the one on the left is 6 (1/2x3x4) and the one on the right is 72 (6x12)

Answer:

6 (1/2x3x4) and the one on the right is 72 (6x12)

To buy a car, Danny borrowed $16000 for 3 years at an annual simple interest rate of 9%. if it takes him 3 full years to pay off the loan, how much interest will he pay? Show your work.

Answers

Answer:

$4,320

Step-by-step explanation:

I equals PRT. I is the interest. P is the principal, amount borrowed. R is the rate, percent. T is the amount of time in years. Principal in this is 16,000. Rate is 9%, or 0.09. Time is 3 years. So 16,000 times 0.09 times 3 equals 4,320. That is the interest.

he would pay $4,320 in interest for borrowing $16000

Solve for x.

2/5 x = 6/5

Answers

Answer: 15/5 or 3

Step-by-step explanation:

2/5x =6/5

1/5x = 3/5

5/5x = 15/5 or 3

the answer is

x = 3

Okay, last question for today. H e l p P l e a s e . . .
15 points btw.

Answers

The answers D!! hope this helps!
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