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

Multiply. Enter the product in the simplest form.
2 2/5 x 5/7



The product is _____?



Please tell me how you got it very clearly



Any spam, nonsense, links, and anything that does not relate to this question will get deleted. Thank you.

Answers

Conversion a mixed number 2 2/5 to a improper fraction:-

=> 2 2/5 = 2 × 5 + 2 = 12/5

To find new numerator:

a) Multiply the whole number 2 by the denominator 5. Whole number 2 equally 2 * 5/5

= 10/5

b) Add the answer from previous step 10 to the numerator 2. New numerator is 10 + 2 = 12

c) Write a previous answer (new numerator 12) over the denominator 5.

Two and two fifths is twelve fifth

Multiple:

= 12/5 × 5/7

= 12 × 5/5 × 7

= 60/35

= 12 × 5/7 × 5

= 12/7

Multiply both numerators and denominators. Result fraction keep to lowest possible denominator GCD(60, 35) = 5. In the next intermediate step, , cancel by a common factor of 5 gives 12/7

12/7 in mixed fraction is 1 5/7

the answer is is 1 5/7

Use mental math to find the difference.
1254-320

Answers

Answer:

934

Step-by-step explanation:

Answer:

That is 934. Hope this helps.

i need help on both of them now !!!!!!!

Answers

Answer:

4/5= 12/15 he had 3/15ths left meaning he painted 2/15th there's 1/15 left

The median is 1/5

4/5=12/15 he had 3/15 left. he painted 2/15 there’s 1/15 left

Julie has 1.54 L of water in a large bottle for a science experiment. She pours the water into beakers. Each beaker holds 0.22 L.

If each beacker gets 1.54 L of water, how many beakers will she fill?
How many beakers does it take to hold the 1.54 L of water?

0.3388

14.28

0.7

7

Answers

Answer: the answer is 7 hope that helped and have a good and always good luck

Step-by-step explanation:

7. 0.22 times 7 equals 1.54. Good luck

I need help on how to show my work and how to get the answer help me pls

Answers

Answer:3,150

Step-by-step explanation:

Well I what I did was I took 450 and then multiplied it by the number of days there are in a week which is 7 so I did 450 x 7 and got 3,150

I hope its right if not please let me know and I would be happy to check over again =)

Which graph represents a linear function?
On a coordinate plane, a parabola opens down.
On a coordinate plane, a line has a negative slope.
On a coordinate plane, a line curves up.
On a coordinate plane, a line curves down, levels off, and then curves down.

Answers

Answer:

On a coordinate plane, a line has a negative slope

Step-by-step explanation:

A linear function is a function whose graph is a straight line. For example, y = 3x - 2 represents a straight line on a coordinate plane and hence it represents a linear function.

Answer : on a coordinate plane, a line has a negative slope. the second one

In the equation A=1p+pri, t is equivalent to ( question 12 )

Answers

Answer:

t = A - p/pr

Step-by-step explanation:

A = p + prt

A = p(1 + rt)

/p       /p

------------------

A/p = 1 + rt

-1       -1

------------------

A/p - 1 = rt

/r            /r

-------------------

A/pr - 1/r = t

t = A - p/pr

Answer:

t = A - p/pr

Step-by-step explanation:

bring a and the rest of the values to one side

Mrs. Brandt is buying markers and crayons for her preschool classroom. Markers are sold in packs of
12
, and crayons are sold in packs of
8
.

What is the least number of packages of each that Mrs. Brandt must buy to have the same number of markers and crayons?

Answers

For the markers you need 2 packs and for the crayons you need 3 packs. The least common multiple of 12 and 8 is 24

Anitha and Jyothi shared some money. Anitha had $4x and Jyothi had $(2x + 8).
Both of them had $56 altogether. Find the value of x and hence find out how much
did Jyothi get?

Answers

Answer:

$24

Step-by-step explanation:

To begin we need to form an equation that equals the total amount of money, which is 56. The question tells us that Anitha's money and Jyothi's money comes to a sum of $56 (the total amount). So, in our equation we will be doing Anitha + Jyothi = 56; our equation will be 4x+2x+8=56.

The next step is to rearrange the equation to get x=..., and we can do this using the funnel method like I have shown in the attached image. First, I simplified to get 6x+8=56. Then, I subtracted 8 from both sides to get 6x=48. Finally, I divided by 6 on both sides to get x=8. This is the first step of the question completed.

The finish the question, we need to work out Jyothi's total money, and since we now know x=8, all we need to do is substitute 8 where x is for Jyothi. So, we need to calculate the answer to 2*8+8, and following the rules of BIDMAS, we get 24. Which is the final answer.

ATQ
4x + 2x + 8 = 56
6x + 8 = 56
6x = 56- 8
6x= 48
x = 48/6
x = 8

Jyothi = 2x + 8 = 2 x 8+8= $24

What is the LCD for 3/6 and 10/12

Answers

Answer:

12 Lcd

Step-by-step explanation:

3/6 and 10/12

6 can go into 12

Answer:

the LCD for 3 and 6 is 6

the LCD for 10 and 12 is 60

Jolon used the slope-intercept form to write the equation of a line with slope 3 that passes through the point (5, –2). His work is shown below.

Step 1: Negative 2 = 3 (5) + b
Step 2: negative 2 = 15 + b
Step 3: Negative 2 + 15 = 15 + 15 + b
Step 4: Negative 13 = b
Step 5: y = 3x – 13

Analyze the steps. In which step did the Jolon make an error?

Answers

Answer:

step 3

Step-by-step explanation:

He should have subtracted 15 instead off adding 15. this would have gotten rid of the fifteen on the right side and left him with -17=b. Instead, he would have added 15 and gotten 13=30+b. That threw off the rest of the equation. The rest of the equation is wrong. b should equal -17

the slope-intercept equations should be y=3x-17

Ratios ar step6made an errror on something

For each of the following discussion questions, write a response in complete sentences. Your response should be at least one paragraph (5 to 7 sentences). Each discussion response is worth a total of 5 points.

What is your favorite subject to photograph? Why?

Answers

Answer:

1st Sentence: Write what your favorite subject to photograph is.

2nd Sentence: Why and what do you like about it.

3rd Sentence: continue explaining what you like about it.

4th Sentence: Maybe an incident or some information related to that (evidence).

5th Sentence: Show how that's important and how it stands out. Say why you like it and maybe why others should like it as well (explain what you see in this subject that makes it your favorite).

6th Sentence: Write your conclusion which could include what subject you like to photograph. Summarize what you like about it.

Step-by-step explanation:

For the conclusion, you can write something like this;

So in conclusion/To sum it all up, my favorite subject to photograph is _______ because of _________. It is a very beautiful subject (or write something like that). (And then here maybe put a reason why others should see the beauty/darkness of it or whatever you see in it). (Here insert some last thought/ lingering thought with your reader, something they can think about even after reading this but you want to make sure it's related to your topic.)

Answer:

I like to photograph old ruins. Unfortunately I live in the United States and those aren't very common here. There are a few super old structures, but not a lot. I've been through Europe and Southeast Asia, though, and enjoyed visiting things like stone circles or old temples and things like that. It's a subject I love, but don't get to see often. I wish I had more money so I could travel more and see more of them.

When you learned to add decimals, you saw that lining up the decimal point in the addends is really important. Why do you think it is not necessary to line up the decimal points in the two factors when multiplying decimals?

Answer in 2 complete sentences.

Answers

Answer:

It is not necessary to line up decimals while multiplying because you count the decimals instead of bringing them down. Plus lining up decimals while adding can overcomplicate the problem with too many zeros.

Step-by-step explanation:

The image shows the linear graph for a family that hired a babysitter for a day. The family gave the babysitter some money up front to buy herself some lunch, and then paid her a constant hourly rate for the hours she worked. Click the thumbnail image to see the full size image.

Which 2 of the following statements are TRUE about THE POINT AT (3, 40) on this line? Select the TWO statements that are accurate.
A. The point at (3, 40) means that the total cost of babysitting after 3 hours is $30.
B. The point at (3, 40) means that the total cost of babysitting after 3 hours is $40.
C. The point at (3, 40) means that a x-value of 3 corresponds to a y-value of 40.
D. The point at (3, 40) means that a x-value of 40 corresponds to a y-value of 3.

Answers

Answer:

I think It's B and C

Marking brainliest! Please math problem below :]

Answers

Range is when you subtract the lowest number from the highest number.
In this case, 2.9 is the highest and -2.3 is the lowest. Subtract those and you get 0.6! I hope this helps !

Hey can some one help me with this problem :'))

Answers

1/2 • 3/4

You have 1 top half filled in and 3 of the 4 blocks on the base filled in

Answer: 1/2x3/4

Step-by-step explanation:

i need pictures for this math proplem

Answers

Answer:

18÷4=4.5 so for each game, len spends $4.50

4.50 is the answer i believe

May someone help me with this. The question is in the picture.

Answers

6,000 students will enroll

Answer:

first we have to find oput how many they accepted, 60% of 10,000 is 6000. Next we have to find out how many of those 6000 will actually enroll.

to find 40% of 6000 we can first find 10% which is 600, so 600x4=2400 or 40% of 6000.

2400 will actually enroll

Do any of u guys understand this?

Answers

Answer:

i dont

Step-by-step explanation:

a. 8 pounds to 12
b. 1.5 for 1 pound
c. 31.5

Select all expressions equal to -2.

Answers

Answer:

It would be C and D

Step-by-step explanation:

A. Would be positive b/c a negative divided by a negative is a posititve

B. Would be -1/2

C. Is -2

D. Is -2.

Hope this helps!

Answer:

D and C

Step-by-step explanation:

A= -6

B= -0.5

C= -2

D= -2

Shilo is trying to compute the value of 27 + 55 + 13. She adds 27 + 13 to get 40, and then adds on 55.

Which of the following properties is Shilo using?

A.commutative
B.distributive
C.identity
D.associative

Answers

Answer: the answer is D

Step-by-step explanation:

3 liters of water are shared equally by 5 people how much water does each person get? division equation to represent the situation

Answers

600 mililiters each

Step-by-step explanation:

1 liter is equal to 1000 mililiter and is multiplied by 3 and the answer is devided into 5.

The division equation that represent the situation is 3/5 and each person will get 0.6 liters of water.

What is division?

The division is one of the four basic mathematical operations, the other three being addition, subtraction, and multiplication.

Now it is given that,

Number of People = 5

Liters of water = 3

So, Water shared by each person = Liters of water / Number of People

Water shared by each person = 3/5

This is the division equation to represent the situation.

Water shared by each person = 0.6

Thus, the division equation that represent the situation is 3/5 and each person will get 0.6 liters of water.

To learn more about Division :

brainly.com/question/28032495

#SPJ2

*FIRST ANSWER GETS BRAINLIEST* The triangle in Quadrant IV is the image of the triangle in Quadrant I after a counterclockwise rotation about the origin.What is the angle of rotation?
A.90°
B.180°
C.270°
D.360°

Answers

Answer:

C. 270°

Step-by-step explanation:

The transformation I saw was 90° clockwise but the question stated counterclockwise so that answer is C.

90° clockwise is same as 270° counterclockwise.

the angle of rotation is, C. 270°.

What is an angle?

In Plane Geometry, a figure which is formed by two rays or lines that shares a common endpoint is called an angle. The two rays are called the sides of an angle, and the common endpoint is called the vertex.

here, we have,

from given figure we get,

The transformation I saw was 90° clockwise but the question stated counterclockwise so that answer is C.

90° clockwise is same as 270° counterclockwise.

To learn more on angle click:

brainly.com/question/28451077

#SPJ2

HELP ME PLEASE i beg u

Answers

Answer:

3. -2

4. 15

5. 0

6. 1

7. 0

Hope this helps!!! If so please give brainliest

Answer:

3)-5+3= -2

4)9-(-6)= 15

5)6-6=0

6)1/2+1/2= 2/2(1)

7)-4+4=0

Identify the y-intercept of the line: y = 3x/4 - 3

Answers

Answer:

with -3 being your slope and 4 being your y-intercept.

Step-by-step explanation:

In y=mx+b your b is the m is the slop and b would be the y-intercept.. -3 would be your y-intercept

A (I cant say it on here for some reason )water fish tank requires a certain salinity. To reach this requirement, the relationship between gallons of water and pounds of salt needs to be proportional. The relationship can be modeled as a line on the coordinate plane where x represents the number of gallons of water and y represents the number of pounds of salt. If the line passes through the point (5,1.5) , what does that point represent?

Answers

Answer: Represents when the equation is at 5 gallons of water 1.5 pounds of salt is needed to have the correct salinity

Step-by-step explanation:

Answer.
What are the four key points of Dalton’s Atomic Theory?
a.
b.
c.
d.
2. In 1913, Neils Bohr proposed a new atomic model known as the _________ model, which is patterned after the solar system.

Answers

Answer:

a. all matter is made of atoms

b. atoms are indivisible and indestructible

c. atoms of given elements are identical in mass and properties

d. compounds are combination of 2> different types of atoms

2. it's called Planetary model

Answer:

1. All matter are made up of atoms, which are indivisible

2. All atoms of the same element are identical; different elements have different types of atom.

3. Atoms can neither be destroyed nor created

4. Compounds are combinations of two or more different types of atoms.

Rutherford-Bohr Model

Step-by-step explanation:

Hope this helps

A housepainter mixed 5 gal of blue paint with every 9 gal of yellow paint in order to make green paint. Which ratio of gallons of blue paint to gallons of yellow paint will make the same shade of green paint?​

Answers

Answer:

Step-by-step explanation:

For every 5:9 AKA for every 5 gallons of food are 9 gallons of yellow

5:9 should be the answer but if you need double it would be 10:18

1. Round 7.058 to the nearest whole number.

2. Round 35. 61 to the nearest tenth.

3. Round 724.398 to the nearest hundredth.

4. Round $1.362 to the nearest cent.
Someone do these for me please.

Answers

1. 7
2. 35.6
3. 724.40
4. 1.36
1 . 7
2. 35.6
3. 724.40
4. 1 cent

I need help on my math
I need help on d

Answers

Answer:

If the diameter is 12, the 90° arc is (1/4)Π(12), or 3Π (approximately 9.42).

Step-by-step explanation:

if wrong pls forgive me

if right mark me brainliest

a. Diameter =1cm
Radius = diameter/2
Radius =1/2
Circumference =2x22/7x1/2
=44/14 = 22/7
=3.14cm
Other Questions
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