can you help me estimate 102.3+4.7

Answers

Answer 1

Answer: 107

Step-by-step explanation:

102.3 can be rounded down to 102 (because the 3 at the end of the number is  less than 5)

4.7 can be rounded up to 5 (because the 7 at the end of the number is greater than 5).

102.3  → estimate = 102

    4.7 →  estimate =   5  

   estimated sum  = 107

Note that estimating the sum is NOT the same as simply adding the numbers and then rounding the sum.


Related Questions

a store is having a sale to celebrate Labor Day every item in the store is advertised as one-fourth off the original price if am item is marked with a sale price of $126 what would be the original price

Answers

Answer:

$168

Step-by-step explanation:

1. x - 1/4x = 126

2. multiply each side by 4

3. 4x - x = 504

4. 3x = 504

5. divide each side by 3

6. x = 168

I need help with this aswell please​

Answers

Answer:

In every Graph you must have the following:

- Heading

- The Two Axis (X and Y)

- Labels for the two axis

- Data

- A Line of Best Fit* joining them up

*A Line of Best fit is a line that doesn't touch all the points but goes between them so you can see roughly the next part of the pattern.

What is the first step in solving the equation.*
1 pont
2(x + 1) = 8x – 5

Answers

Answer:

Distribute

Step-by-step explanation:

The first step in solving this equation is distribute (get rid of parentheses):

2x + 2 = 8x -5

Hope this helps ^^

Distribution

You are gonna distribute 2( x+1 )

The jansen family has 2 1/2 gallons of milk. Each of the 3 family members drinks 1 1/2 cups of milk a day .How many cups of milk are left after 8 days ?

Answers

Answer:

4

Step-by-step explanation:

The amount of milk remaining is equivalent to 4 gallons.

What is a function? What is equation modelling? What is a mathematical equation and expression?In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the functionEquation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions.

Given is that Jansen family has 2 1/2 gallons of milk. Each of the 3 family members drinks 1 1/2 cups of milk a day.

1 gallon = 16 cups

2[tex]\frac{1}{2}[/tex] gallons = 2[tex]\frac{1}{2}[/tex] x 16 = 5/2 x 16 = 5 x 8 = 40 cups

Now -

Total milk consumed in 1 day = 3 x 3/2 cups = 9/2 cups = 4.5 cups.

In 8 days, the amount of milk consumed will be = 4.5 x 8 = 36 gallons.

Remaining amount = 40 - 36 = 4 gallons.

Therefore, the amount of milk remaining is equivalent to 4 gallons.

To solve more questions on equations, expressions and polynomials, visit the link below -

brainly.com/question/17421223

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Solve for y 2y - 11 > -19.

Answers

Answer:

Y>-4

Step-by-step explanation:

Add 11 to both sides and divide

Answer:

y > - 4

Step-by-step explanation:

Given

2y - 11 > - 19 ( add 11 to both sides )

2y > - 8 ( divide both sides by 2 )

y > - 4

Choose all the number sentences that have a sum less than 345,195: A) 189,753 + 155,655 B) 324,675 + 19,285 C) 185,476 + 155,923 D) 97,560 + 246,894 E) 313,489 + 32,450

Answers

Answer:

C, D

Step-by-step explanation:

Calculate the sum of all.

C and D have less then 345,195.

That is the answer.

The expression that has a sum of less than 345,195 are B, C, and D.

What is an Expression?

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

To calculate the number of sentences that have a sum of less than 345,195. The expression is needed to be simplified as shown below.

A) 189,753 + 155,655 = 345,408

B) 324,675 + 19,285 = 343,960

C) 185,476 + 155,923 = 341,399

D) 97,560 + 246,894 = 344,454

E) 313,489 + 32,450 = 345,939

Learn more about Expression:

https://brainly.com/question/13947055

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Determine the equation of the line passing through the point ( − 5 , − 22 ) ,with a slope of m = 5 .

Answers

Answer:

The equation of the line is y = 5x + 3

Step-by-step explanation:

Use the point given to find the y-intercept.

y=mx+b

-22=5(-5)+b

-22=-25+b

3=b

Find the length of the segment connecting (0,2) and (5,-5). Round your answer to the nearest tenth.

Answers

Answer:

8.6

Step-by-step explanation:

8.6 would be the answer rounded

x² + 2y– xy2 - 7xy –8+ 3x’ – 7xy + y² + 3xy?

Answers

Answer:−xy2+x2−11xy+y2+3x+2y−8

Step-by-step explanation:

write 0.006 8 4 in scientific notation​

Answers

Answer: 6.84 x 10^-3

Step-by-step explanation:

Answer:

[tex]6.84 \times 10 {}^{ - 3} \: \: \: is \: the \: scientific \: notation.[/tex]

1.Estimate square root 3

Answers

1.732 is the square root of 3

Jodi liked to collect stamps. On 3 different days, she bought 6 stamps. Then she decided to sell 4 of them. After that she bought 2 sets of 5 stamps. She figured out how many she had total, and then she divided that total into 3 groups to put into stamp books. How many did she put in each book?

Answers

Answer:

4

Step-by-step explanation:

6-4=2

2x5=10

10+2=12

12 divided by 3=4

She put 4 in each book.

plz help.will give brainliest

Answers

Answer:

x+2 x+2 x+2

Step-by-step explanation:

what is the value of x ?

Answers

Step-by-step explanation:

2(2x - 6) + 2(x + 3) = 26

4x - 12 + 2x + 6 = 26

4x + 2x -12 + 6 = 26

6x - 6 = 26

6x = 26 + 6

6x = 32

x =32/6

x = 5.3333

Answer:

Step-by-step explanation:

2(2x -6) + 2(x + 3) = 26

4x - 12 + 2x + 6 = 26

6x - 6 = 26

6x = 32

x = 32/6= 16/3

How can you rewrite square root 2

Answers

Answer:

2/6

Step-by-step explanation:

2€2:$5(:$:& there tout

what is 3/4 + 1/6? how do you do that

Answers

Answer:

answer 11/12

hope this helped you

please mark as the brainliest (ㆁωㆁ)

A model of a plane is made using a scale of 1:5. If the wings of the model are 1.2m long, what is the actual length of the wings on the plane?

Answers

Answer:

  6 m

Step-by-step explanation:

Multiply your scale by 1.2 m:

  1 : 5 = 1.2 m : 6.0 m

The wings on the plane are 6.0 m long.

PLEASE HELP...question says “Sylvia bought four pens for one dollar each and five folders for three dollars each. Write a numerical expression to represent this situation and then find the total cost in dollars”

What the hell im so confused

Answers

Answer:

y= 4(x) + 3(5x)

$19

Step-by-step explanation:

Which of the following expressions are equivalent to 3V 2 ? Select all that apply. ​

Answers

Answer:   A  C and D

                               

Step-by-step explanation:

I'd love some help on this question. I do not understand how you would go about working this out, so please explain the working out. Thank you!!!​

Answers

Area = length x width and volume = length x width x height soo you would have to multiple 4 and 25 and that’s 100

a^2+b^2=c^2 for c
algebra 2

Answers

Answer:

D

Step-by-step explanation:

c = √(a² + b²)  is correct because to isolate c you need to square root everything while still keeping a^2+b^2 together.

Ashley wants to pour 97.94 grams of salt into a container. So far, she has poured 39.1 grams. How much more salt should Ashley pour?​

Answers

58.84 grams. 97.94 - 39.1 = 58.84 grams of salt

X. 3^2+x = 5 * 4 - X *


Your answer

Answers

Answer:

chicken

Step-by-step explanation:

pizza and fries and boom your done theres your answer I hope i helped you a lot!

Answer:

X= 11/2

Step-by-step explanation:

What’s 12 away from -6 on a number line?

Answers

Answer:

-18

Step-by-step explanation:

you add 12 and six together and you get 18. Then you put a negative sign in front of it

-18 , because u start with -6 and you count 12 spaces to the left

do two lines meet in more than one point

Answers

Answer:

It depends.

Step-by-step explanation:

If it is two straight lines, then no, there is no way for the lines to intersect in more than one place. If the line is a parabola, then the lines would intersect in 2 places. It depends on what type of line you have.  

Solve the equation for the variable.

[tex]49 - \frac{2}{3} x = 32 - \frac{1}{6} x[/tex]

x = [?]​

Answers

Answer:

1) Take LCM

(147-2x)/3 = (192-x)/6

2) Cross multiply

882-12x= 576-3x

3) Rearrange

882-576= 12x-3x

306= 9x

x=306/9

x=34

Hope it helps :-)

What is the intersection of plane WXYZ and plane VUYZ?

Answers

Answer:

the first one

Step-by-step explanation:

the two planes intersect at line YZ, where they meet

tip: planes intersects at a line, just like how lines intersect at a point

hope this helps :)

Of the students at Milton Middle School, 144 are girls. If 45% of the students are girls, how many total students are there at Milton Middle school.​

Answers

Answer:

The total number of students at Milton Middle School is 240

I have some questions i need help with on my profile :)

Answer:

The total number of students in Milton Middle School is 240.

Is point R collinear with points Q and S?

Answers

Answer:

can't hwlp you without an image

Please help, image is attached! Thanks.

Answers

When something is bisected, it is cut into two equal halves.

We know that SV cut RST into two parts.

Those two parts are RSV and VST

RSV = 64 and VST = 64

RST = RSV + VST = 64 + 64 = 128

The correct answer should be 128

Answer:

I.128

Step-by-step explanation:

Since SV bisected angle RST, the angle is split in two by equal parts, therefore RSV + VST = RST

64 + 64= 128

128°= RST

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