Mathematics Middle School

A student estimated the sum

7.95 + 8.11 + 78.5 + 8.05 + 79.4 + 0.815 as:

All the numbers begin with a 7 or 8, so use cluster estimation.
8 + 8 + 80 + 8 + 80 + 0.8 = 184.8

Explain why this reasoning is not accurate.

Answers

Answer 1

Answer:

i don"t know  if it right but i got 183.275

Step-by-step explanation:

i looked up the answer

Answer 2
It is incorrect because if those decimals were to be added together it would provide a different number

Related Questions

Kissie needs to paint the top and sides of a rectangular prism. the prism has a length of 25 mm, a width of 15 mm, and a height of 9 mm. how much paint does she need to cover the top and sides?

Answers

Area total = 1,095 mm2, hoped this helped :D

Answer:

Area total = 1,095 mm2

Step-by-step explanation:

Which of the following sets of numbers could represent the three sides of a triangle?

1. 13, 22, 37
2. 5, 7, 14
3. 15, 22, 39
4. 11, 21, 29

Answers

Number 4.

The 2 lower sides have to add to the bigger 3rd side.

Hope this helps m8.

what is the answer to this?

Answers

Bottom left is the correct answer

Answer:

(8+24)÷(12*4)

Step-by-step explanation:

(8+24)÷(12*4)

(32) ÷(48)

.6666 or 2/3

It the bottom right or the one boxed in

Helllpppp

Giving brainliest :))))

Answers

Answer:

you'll multiply by 0.08 since that is what 8% is. 40*0.08=3.2 for additional tax

Step-by-step explanation:

If the sales tax is 8% it’s going to be 43.2 if 10% of 40 is 4 then 1% of 40 is .4 you just got to add .4 8 times

Identify the number or numbers that are equivalent to a terminating decimal.

Answers

The answer is C, hope this helped!!<3

Need help. thanks. please answer within 45 minutes. I think i have selected the right ones but please confirm

Answers

Answer:

You have chose the correct ones.

Step-by-step explanation:

I know I'm late, but just wanted to help out!

This is due in 30 min pls help!

Answers

Answer:

16.7 (rounded)

Step-by-step explanation:

Divde 200 by 12 and that should give you your answer if I'm wrong I'm so sorry!

Find the missing angle.

Answers

Answer:

Step-by-step explanation:

A=104

B=30

C=?

C=180-104-30

C=180-134

C=44

THE MISSING ANGLE IS 44 DEGREE.

2ND METHOD:

A+B+C=180

104+30+C=180

C=180-134

C=44

Answer:the answer is 52 digree

Step-by-step explanation:

Im still not sure, can someone help me?

(I will give brainliest)
(NO LINKS OR FILES)

Please!

Answers

Answer: 9 associate property 8 commutative property

Step-by-step explanation:

Find the lateral surface area of the cylinder. Round to the nearest tenth if necessary.

Answers

Answer:

613.24

Step-by-step explanation:

hope this helps, let me know if you get it right

Marta wants to give the waiter a 18% tip. Write an expression with one term that Marta can use to figure the total amount of money she needs to leave for the meal, m.

Answers

18% I think hopefully bye

Write an algebraic expression that is the quotient of a variable term and a constant.
:( sorry im so bad at these. brainlyest will go to who awnsers it first c:

Answers

9514 1404 393

Answer:

  (47xy)/(6√3)

Step-by-step explanation:

A variable term is one that contains one or more variables, possibly with a coefficient. We can use 47xy as our variable term.

A constant is some number, or a representative of a particular number. π and e and Ф are representative of irrational constants. Of course, any number is also a constant. We can use 6√3 as our constant.

A quotient is formed when a first value is divided by a second value.

Here is the quotient of our variable term and our constant:

  [tex]\dfrac{47xy}{6\sqrt{3}}[/tex]

Evan bought two plants. He decided to water his first plant every 3 days and his second plant every 4 days. If he watered both on June 1, when will Evan water both plants on the same day again?

Answers

Answer:

the 12th

Step-by-step explanation:

June 12th.

The first common multiple of both 3 and 4 is 12.

3,6,9,12... and
4,8,12...

See attachment for questions.

Answers

The solution is attached. I hope it helps

You roll a six-sided number cube and flip a coin. What is the probability of rolling a number less than 2 and flipping heads? *
1/12
1/4
6/2
2/6

Answers

Answer:

1/12

Step-by-step explanation:

First, you should already be able to understand that the only number less than 2 on this cube is 1. So, you can understand that there is a 1/6 chance because there is a total of 6 numbers, and out of those, only 1 of those are your answer.

Then, you will note that a coin only has 2 sides, so there is a 50/50 chance of getting heads, or 50%. Now, you will turn that into a fraction, which is 1/2.

Next, you will multiply to make the denominators the same. And what you do to the denominator must happen to the numerator. (1/6 * 2--> 1/12 and 1/2 * 6 = 1/12)

Hope this helps! :)

1/12 that the answer

Exit

The expression 1/2 bh gives the area of a triangle with a base length of b and a height of h.

Which statement is true?
A. The coefficient of is b.
B. The constant in the expression is .
C. There is one term in the expression.
D. There is one variable in the expression.

Answers

is there something else
As per question requirements the true statement is there is one variable in the equation

Fundamental Counting Principle (L1)

Answers

Hope you are having a great day!

STEP BY STEP: a+b(x)=6

solve the following question below

Answers

The question is not specified how many fluid oz are the pancakes and how many pancakes is she going to make

I know the first 2 are right, but usually there are 3 right answers for 5 choices, is there another one or am I good?

Answers

Answer:

You should be fine.

Step-by-step explanation:

Answer:

It's good. Hope you get a A+!

Step-by-step explanation:

4.) Dylan scored a 95, 78 and 89 on his first three science tests. Write and solve an inequality to determine what is the lowest possible score he can get on his fourth test to average at least a 90 in the class.

Answers

Answer:

98

Step-by-step explanation:

Dylan must get at least a 98% to reach an average of 90. (95+78+89+98)÷4=90.

98 is your answer for

Calculating interests,plz help-

Answers

HELLOOOOOOOOOOOOOOOOOOOOOOOOOOOOO :D

Math, I need help. . .

Answers

Answer:

How do you do it? I can help solve

Step-by-step explanation:

I have no clue I’m in algebra I forgot everything in middle school

In a diagram which of the following statements are false

Answers

Answer:

1 and 4 are vertical angles. thats false.

edit: nvm.

PLEASE HELP Consider the equation.
28 + 21 = 7(4 +? )
Enter the unknown number that makes the equation true.

Answers

Answer: 3

Step-by-step explanation:

28 + 21 = 49, so we have 49 = 7(4+?)

49/7  = 7

7 - 4 = 3

Hope this helps!

The missing number is 7

HEEEEEEEELLLLPPPP PLLLLAZZZZZZZZZ

Answers

Answer:

The first picture is B and the second one is (0,-3)

Answer:

1) B

2) (0, -3)

Step-by-step explanation:

1)

B has (1, -2)

2)

A is located at (0, -3) since it's on the y-axis and x is 0

Please help 13 MATH PROBLEM

Answers

Answer: The answer is 431/120 then you Simplify it and that would be

3 71/120  so the answer is F

Step-by-step explanation:

Hope this helps ya! Have a good day! :)

i’m pretty sure the answer is g

Based on the resolution, summarize the story’s message about what it means to be a hero.

Answers

Heroes never give up in the battle against evil, and they aren’t afraid to ask others for help.

64.8=6(m+2.9)
what is m
please help me and explain how did you get your answer

Answers

Answer:

= −11.2

Step-by-step explanation:

64.8=6(m+22)

We move all terms to the left:

64.8-(6(m+22))=0

We calculate terms in parentheses: -(6(m+22)), so:

6(m+22)

We multiply parentheses

6m+132

Back to the equation:

-(6m+132)

We get rid of parentheses

-6m-132+64.8=0

We add all the numbers together, and all the variables

-6m-67.2=0

We move all terms containing m to the left, all other terms to the right

-6m=67.2

The answers is
M=7.9

Help ASAP!!!!!!!!!..........

Answers

Answer:

14x

Step-by-step explanation:

please mark this answer as the brainlest

Answer:14/100                              Step-by-step explanation: ad 3 6 and 5 together and you will get 1 the simplyfied it then you will get 14/100

I WILL GIVE BRAINLIEST
For which of the figures can we apply Cavalieri's principle to show they have the same volume?

Answers

the answer is a. A and B

Answer: D : A, B, C

Step-by-step explanation:

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