Mathematics Middle School

Easy Points...Must Answer question though!
Who's sad about Yahoo Answers closing down soon, write at least 2 sentences.

Answers

Answer 1

Answer:

me. Its pretty sad consdering its been really helpful, and its been a great community. It was a safe space, but it had a few faults. not a problem, and we got great memes from there.

Step-by-step explanation:

Related Questions

help i dont know the formula for the triangle to find the answer its surface area n volume

Answers

Answer:

#4=10.5

#5=48

Step-by-step explanation:

The formula for the triangle for area is 1/2 time base times hight

The forumale fot the triangle for volume is 1/2 time base times hight

So for number #4 it will be 1/2 x 3 x 7

and number #5, it will be 1/2 x 8 x 12

Solve for volume please

Answers

Answer:

35.25

Step-by-step explanation:

brainly please

Answer:

V = 780yd

Step-by-step explanation:

We are given a rectangular prism with 3 different sides of numbers, then are asked to find the volume.

The volume of a rectangular prism is V = lwh

l = 20yd

w = 3.25yd

h = 12yd

All we need to do to find the volume is multiply all the number together :

V = 20yd * 3.25yd * 12yd

V = 65yd * 12yd

V = 780yd

A radar measures the speed of a car at 45 miles per hour. The actual speed of the car is 40 miles per hour what is the percent error in the reading of the radar.

Answers

Answer:45

Step-by-step explanation:

answer: 11.11%

step-by-step explanation:
the radar was off by 5 miles per hour, so we need to find what percent 5 is out of 45. percent of (times) if you don’t know how to find that out.
make the assumption that 45 is 100% because it is the output.
next we represent the value we seek with x. so 100% = 45 and x% = 5.
this gives us the simple pair of equations 100% = 45(1) and x% = 5(2).
then multiplying the equations together like 100%/x% = 45/5.
make it into its reciprocal so x%/100% = 5/45. that comes out to be x= 11.11%
5 is 11.11% of 45 so the radar is off by 11.11%

If you are given the surface area of a square pyramid and the area of the base, how could you calculate the area of each side of the pyramid?

Answers

Answer:

you need to divide the surface are and the base and you should get the number of each lateral face

Step-by-step explanation:

but you do need to tell me the numbers so do that in the comments

Please can someone help me I'm confused
(Brainliest to the person who gets it )

Answers

Answer:

$90 = 60p

p = $1.50

Step-by-step explanation:

Brainliest Please!

Answer:$ 10 dollars per cupcake

Step-by-step explanation:

if she bought cupcakes for $30 and she needs the profit more than $90

10 x 60 = 600 so that would be better

!Help Help Help! lols

Answers

Answer:

Tricia travels at a rate of 50 miles per hour

Step-by-step explanation:

Answer:

75 miles per hour

Step-by-step explanation:

150 divided by 2 is 75

A biologist estimated that the current population of ladybugs in the region was 8.3 × 106. He predicts that a swarm of 950,000 ladybugs will be arriving into the region.

According to the biologist's estimates, how many ladybugs will be in the region after the swarm arrives?

A.
1.78 × 106

B.
9.25 × 107

C.
9.25 × 106

D.
1.78 × 107

Answers

Answer:    B

Step-by-step explanation:

Find the surface area- and show ur work pls

Answers

Answer:

240

Step-by-step explanation:

Write the phrase using numbers.
the product of a number (e) and 5

Number Form:
Expression or Equation:

Answers

Answer:

The Proper codes in Line a and Line b is given below

average=Sum/3  

print (" Average is = ", average)

Explanation:

In the given question it calculated the sum but the program does not calculate the average of the 3 numbers.The average of the 3 number is calculated by using average=Sum/3   statement so we add this code in Line a then After that print the value of average by using the print function so we add this code in Line b.

Step-by-step explanation:

The one above me is correct

Marc runs 24 miles in 6 hours. At that rate, how many miles would he run in 4 hours?

Answers

Answer:
16 miles
Explanation:
Do a fraction:
24 miles / 6 hours = x miles / 4 hours
Cross multiple (24)(4) and (6)(x) to give you 96 = 6x and divide by 6 on both sides to isolate x and you get 16 = x

Answer:

The answer is 16 miles

Step-by-step explanation:

.......

Jack bought a motorbike. The original price was $1,300, but he got a discount of 20%. What was the discounted price of the bike?

Answers

Answer:

I believe it's $1,040.

Step-by-step explanation:

So, the original price is $1,300. If we subtract $1,300 by 20% the result should be $1,040.

Therefore, the discounted of the price would be $1,040.

This is a pre-algebra 7th-grade math question, its kinda sucky that I cant actually write the math question, because of the random assortment of different characters,

Answers

Answer:

a or c

Step-by-step explanation:

i have a d in my class but i need it caught up to a b or an a asap so will anyone help me please? do like two sepperate answers for both but in one answering way

Answers

Answer: i do not under stand your question so edit your question and then i will edit my answer so you can get your answer

Step-by-step explanation:

Math math math math math obviously not my strong suit.

Answers

Answer:

1. is 22, 2. is 57, 3. is 60, 4. is x=15, 5. is x=14, 6. is x=84, 7. is x=60, 8. is x=-26, 9. is x=40, 10. is x=12

Answer:

1. is 22, 2. is 57, 3. is 60, 4. is x=15, 5. is x=14, 6. is x=84, 7. is x=60, 8. is x=-26, 9. is x=40, 10. is x=12

Step-by-step explanation:

you didn't even put your name my guy

HEEEELLLLLLPPPPPP!!!!!

Answers

Answer:

10*10*10*10*10*10*10*10*10*10*10*10*10=10000000000000

4.94*10000000000000=49400000000000

49400000000000-26000000000= 49374000000000

Step-by-step explanation:

use some propoerties of exponnets
(x^m)/(x^n)=x^(m-n)

so
convert every body to scientific notation
(number less than 10 but equal to or greater than 1) times (10^x)

baby=26,000,000,000
how many decila places to move to left to make less than 10 but equal to or great than 1
10
there for it can be writtten as
2.6*10^10

how many times bigger is adult than baby
baby times x=adult
divide adult by baby with the numbers
x==
times =
1.9 times 10^3

answer is 1.9*10^3

A teacher surveys a sample of students from Lake Middle School. He asks the students where they’d like to go for a field trip. He records these results:

80 choose the aquarium.
60 choose the science center.
30 choose the planetarium.
40 choose the farm.
The teacher wants to figure out the relative frequency of a student choosing the aquarium. He will then estimate how many students out of all 1000 at the school are likely to choose the aquarium.

Answer the questions to solve the problem.

1. How many students did the teacher survey?


Write your answer in the space below.















2. What is the relative frequency of a student choosing the aquarium? Give your answer as a decimal rounded to the nearest hundredth. Show your work.


Write your answer in the space below.















3. Suppose the teacher surveys one student at random. Based on the survey results, what is the estimated probability that the student chooses the aquarium?


Write your answer in the space below.















4) Write and solve a proportion that the teacher can use to estimate how many students in the whole school would choose the aquarium. Show your work.


Write your answer in the space below.

Answers

Answer:

1 is 210

Step-by-step explanation:

i got he answer by adding the 4 things up

Answer:

210 student's

Step-by-step explanation:

80 students chose the aquarium.

60 students chose the science center.

30 students chose the planetarium.

40 students chose the farm.

The students can't vote for more than one place, so you just add all the numbers together.

80 + 60 + 30 + 40 = 210 students

Step-by-step explanation:

name at least two independent variables that could result in a change in a monthly electric bill
ill give thanks and brainliest ;-;
(please i had to repost since a bot answered my last questions, waste of my 20 points

Answers

Answer: There are often not more than one or two independent variables tested in an experiment, otherwise it is difficult to determine the influence of each upon the final results. There may be several dependent variables, because manipulating the independent variable can influence many different things.

Two independent variables that could result in a change in the monthly electricity bill are: Physical size of products and Skill level of operators of machines.

Independent Variables

Independent variables are the determining factors that influence how a dependent variable changes.

For example, monthly electricity bill is a dependent variable which is dependent on the following:

Physical size of productsSkill level of operators of machines.Non-production machines utilizing electricity among others.

Therefore, two independent variables that could result in a change in the monthly electricity bill are: Physical size of products and Skill level of operators of machines.

Learn more about independent variable on:

https://brainly.com/question/25223322

8. Please help me thanks

Answers

Answer:

D) 1800

Step-by-step explanation:

Answer:

1800

Step-by-step explanation: Because 10 x 180.

please answer correctly brainliest if right

Answers

its 3,5,6 inch :) i got the same question late year

Part A: Write an algebraic expression for 6 more than 7 times a number

Part B: Write a verbal expression for 3(n + 8).

Answers

Answer:

Part A: Equation 7n+6

Part B: The sum of three plus eight multiplied by a number.

Step-by-step explanation:

6 more= add 6

7 times a number

number=n

7n+6

sum= the result of adding two or more numbers

Answer:

Part A: Write an algebraic expression for 6 more than 7 times a number. 7n+6

Part B: Write a verbal expression for 3(n + 8).The sum of three plus eight multiplied by a number

Step-by-step explanation:

Please help me I will give brainliest

Answers

Do not click the link they will hack

y = 3x − 8
y = 9x − 11

Part A: Using your own words, explain how to solve the pair of equations graphically. Write the slope and y-intercept for each equation that you will plot on the graph to solve the equations.

Part B: What is the solution to the pair of equations?

Answers

Answer:

A. You would first plot the y intercept.  The first equation would be (0,-8) and the second equation is (0,-11).  Then you would plot the slope.  For the first equation, from (0,-8), you would move up 3 plots and right 1 plot.  For the second equation, from (0,-11), you would move up 9 plots and right 1 plot.

B. The solution to the pair of inequalities is (1/2, -13/2).  That is the intersection and point of the two lines.  You would need to graph the two lines (see part A answer) and then find the intersection.  

Hope this helps!

..........................................

Answers

Answer:

x=13

Step-by-step explanation:

mugs=x

key=y

x+y=21         8.5x2.75 =132.50

y=  -x+21

8.5x + 2.75 (-x + 21) = 132.50

8.5x - 2.75 + 57.75 = 132.50

5.75x = 74.75

x= 13

pls mark as brainliest

Answer:

he bought 13 coffee mugs and 8 key chains.

Step-by-step explanation:

How about we solve by simulataneousequation:

consider   coffee mug 'x' and key chain 'y'

there are total 21 items,

x+y = 21

=> x  = 21 - y .........................(i)

and

total cost is $132.50

8.5x + 2.75y = 132.5 .........(ii)

put value of x from eqn (i) into (ii):

8.5 ( 21 -y) + 2.75y = 132.50

=> 178.5 - 8.5y + 2.75y = 132.50

=> -5.75y = -46

 =>y = 8

Put vaklue of y back in (i):

x = 21 - y

=> x = 21 - 8 = 13

thus, x = 13

he bought 13 coffee mugs and 8 key chains.

For each question, identify the population and a possible sample.

Answers

Answer:

1 The number of people who bought the book.  A best-seller list from the 1990s

2 The entire US.  List of new cars bought between the given time points

3 The poplulation of North America that`s teachers.   A Random sample of teachers incomes from different places inside North America.

4 A group of Tasmanian Devils.   A few Tasmanian devils in a controlled environment

Hope this helps

I got two questions I need help with

Answers

need a picture to give you answers

no bots answer please and will give brainliest

Answers

Answer:

27

Step-by-step explanation:

on one face you see 3 x 3 (top face)

3 x 3 = 9

and if you look at another side (right one is what im looking at) you will see 3 x 3 again so that means this will be equal to 3 cubed (3^3) or 3 x 3 x 3

if you do 9 x 3

9 x 3 = 27

that equals the volume of the cube

27 units cubed

27 is your answer hope thjs helps☺️

Do any of y'all know how to do this I'm so confused and I need help ​plz

Answers

Answer:

8.625 ft, second option

Step-by-step explanation:

For the rectangles:

1.5 * 2.5 = 3.75

So, 3.75 ft for one rectangle

But there are two rectangles, so:

3.75 * 2 = 7.5

So now the area is 7.5ft for both rectangle.

For the triangle:

Triangle formula - 1/2 × Base × Height

In this case both the base and the height are 1.5 so next step is multiplying by plugging in the numbers

1/2 * 1.5 * 1.5 = 1.125

So the area for the triangle is 1.125 ft

Total area:

Now you just add the numbers you got which is 7.5 and 1.125

7.5 + 1.125 = 8.625

The area is 8.625 ft

A rectangular prism and its net are shown below. (All lengths are in feet.)

Answers

Answer:

Step-by-step explanation:

2%2.Kelly iek

1. The chairman of the community bazaar is assigning people to chair committees. How many different
ways can the 6 people be assigned to chair the subcommittees?

Answers

Answer:

720 different ways

The 6 people be assigned in 720 different ways to chair the subcommittees.Step-by-step explanation:

HaLp pLEaSE I NEeD tO GEt ThIS DoNE oR mY mUM WiLl bE MaD ThANkS

Answers

Answer:

B is the answer

the answer is b) 33/18 66/26
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