Mathematics Middle School

Estimate 459 + 335 + 1,467 by first rounding each number to the nearest hundred.

Answers

Answer 1
the answer is 2,400

Related Questions

Jim started cleaning at :1009 AM and finished at :1132 AM.
How long did it take him?

Answers

Answer:

1 hour and 23 minutes

Step-by-step explanation:

11:32-10:09=1:23

Thinking through this logically, one hour after 10:09 is 11:09 and we know that it took him longer than this.

We can then subtract the minutes without having to worry about the base-60.  

32 minutes -9 minutes =23 minutes

We then add the 23 minutes to the 1 hour and determine that it took him 1:23 (one hour and twenty-three minutes).

Answer:

ANSWER

1 hour and 23 minutes

Step-by-step explanation:

bc im right

your welcome!

You and your friends are 3/16 of a pizza in 1/16 of an hour. How long will it take for the two of you to eat the entire pizza? If you had more friends eating pizza, how many could you eat in one hour?

Answers

1/16 of a pizza in: 1/16 : 3 = 1/48h
Entire pizza in: 1/48x16=1/3h
In 1h, u can eat: 3/16x16=3 (pizza)

Which operation should be performed on both sides of this equation to solve for x? x+4 = 6

a add 4
b.add the opposite of 4

c. multiply by the reciprocal of 4

d. multiply by the opposite reciprocal of 4​

Answers

Answer: X=2

Explanation:
b! x+4-4=6-4. you want to get the x by itself

-1/6*-1/5=
pls help fast I will give brainliest to first or second

Answers

Answer:

Step-by-step explanation:

-1/6 * -1/5 = 1/30

A negative number times a negative number equals a positive number. When multiplying fractions, the numerators get multiplied over the denominators being multiplied. so -1 * -1 = 1 which is the numerator. 6 * 5 is 30 which is the denominator.

Answer:

Step-by-step explanation:

.033333333333333333 it goes on forever

the temperature in Antarctica was -12 for 4 hours the temperature rise 2 every hour what was the temperature after 4 hours (please help)

Answers

If it rises 2° every hour, it would rise 8° since 2 x 4 = 8.
So then you would take -12 + 8 which is -4.
Therefore your answer is -4°
Hope this helped!
-4
4x2=8
-12+8= -4
When dealing with negatives, I make the negative a positive, then when I get the answer I add the negative sign again

Help please. I will be happy.

Answers

Answer:

Option B is correct

Step-by-step explanation:

Brainliest PLEASE!!!!!

Find the value of x in each diagram. Show all your working and give reasons for any statements.

Answers

Answer:

x = 150

Step-by-step explanation:

The sum of the angles around a point is 360°

Sum the 3 angles and equate to 360

x + x - 30 + 90 = 360

2x + 60 = 360 ( subtract 60 from both sides )

2x = 300 ( divide both sides by 2 )

x = 150

Answer:

x = 150°

Intro:

We need to find 'x'. We are given that the sum of the angles around the points is 360°. Using this clue, we can find the unknown 'x'.

Step-by step Explanation:

Step 1: Create an Equation of the Angles.

=> 360 = x + x - 30 + 90.

Step 2: Solve.

=> 360 = x + x - 30 + 90.

=> 360 = 2x + 60.

=> 360 - 60 = 2x

=> 300 = 2x

=> x = 150

Final Answer:

After working on the problem, we can conclude that x = 150°.

Hoped this helped!

Question 15(Multiple Choice Worth 5 points) (01.02 MC) Simplify negative 2 and 1 over 9 – negative 4 and 1 over 3. 2 and 2 over 9 negative 6 and 4 over 9 negative 2 and 2 over 9 6 and 4 over 9

Answers

Answer:

Question:

Simplify -2¹/9 – -4⅓

Answer:

-2¹/9 – -4⅓ when simplified is 20/9

Step-by-step explanation:

Given

Simplify -2¹/9 – -4⅓

First, we need to convert both fractions from mixed fraction to improper fraction

-2¹/9 = -(18+1)/9

-2¹/9 = -19/9

-4⅓ = -(12+1)/3

-4⅓ = --13/3

So, -2¹/9 – -4⅓ becomes

-19/9 - - 13/3

-19/9 + 13/3

Find LCM of both fractions (9)

(-19 + 39)/9

20/9

Hence, -2¹/9 – -4⅓ when simplified is 20/9

Step-by-step explanation:

i don't know if this is right but hope this helps.<3

A. Sarah's bill at the restaurant was $12.81. She left a tip of 20%. What was the tip amount? Round your answer to the nearest hundredth.
B. What was the total bill? Round your answer to the nearest hundredth.

Answers

Answer:

A. $2.56

B. $15.37

Step-by-step explanation:

A. When you’re asking what is a certain percent of a specific number, you turn the percent into a decimal and multiply it by the specific number. In this case, 0.20 * 12.81 = 2.562

Since we are to round to the nearest hundred, that leaves us with $2.56.

B. To get the total bill, add 12.81 and 2.56 to get a total of $15.37.

A : 2.56 reason: 12.81 x 1/5 is 2.56
B add them together you get 15.37
you round them to hundredths

Use the check word to complete the H-diagram

​

Answers

First one is denominators and the second one is numerators

One brother says of his younger brother: “Two years ago, I was three times as old as my brother was. In three years’ time, I will be twice as old as my brother.” How old are they each now?

if you can figure it out i will give brainiest

Answers

Let us suppose two years ago my brother's age was x years

Then, my age was 3x

Three years from now, my brother's age will be (x +2+3) = (x+5) years

And my age will be (3x+2+3) = (3x+5) years

But it is given that i will be twice as old as my brother.

So, 2(x+5)= (3x+5)

or, x= 5 years

So my brother's present age is 5+2= 7 years

And my age is 5*3+2= 17 years

2 years ago -
younger brother was 5
he was 15

= 5 x 3 = 15



now -
younger brother is 7
he is 17



3 years time -
younger brother is 10
he is 20

= 10 x 2 = 20




answer is 7 & 17




help pls !! the 2 are the same theyre just duplicated !

Answers

Answer: 1.Non 2.Pro 3.Non 4.Pro 5.Non 6.Non 7.Pro 8.Pro 9.Non 10.Pro

Step-by-step explanation:

Sorry… I cannot see the picture photo. :(

Functions (A or B) then the rest you have to type it out

Answers

Answer:

Function A has the great initial value because the initial value for Function A is 4 and the initial value for function B is 3

Step-by-step explanation:

initial value = y-intercept

Match the graph
please :)

Answers

Answer:

y = 2x^2 + 4 is 1

y - x^2 - 2x + 1 is 3

y = x^3 -2x is 2

Step-by-step explanation:

Can you help me with this, if your right, you will get brainliest.

Answers

Answer:

50 cents per candy bar

2 for a dollar

6 per dozen

Step-by-step explanation:

Answer:

A, B, C

Step-by-step explanation:

it does cost 50 cents per candy bar,  it does cost $6 for a dozen and you can get 2 candy bars for a dollar. fir D, it's also correct, but I=it doesn't apply to this problem

If x = 11 and y = 7, what is the value of the following expression?
x - 8 + 4y

Answers

I think it is 31 I might be wrong but I tried :)
If you change the x with the 11 and the y with 7, you subtract the 8 from 11, than add 4 times 7. And you get 31

Help please I'm begging you.

Answers

Answer:

number of players 10

skate rental $15

snacks $45 and $250 rink rental

so its $15 + $45 + 250 = 310

Step-by-step explanation:

Dont worry, so if you have 10 players coming skate, that means you have to
1. 4.5*10 so that is the cost of snacks for the 10 skaters
2. 1.5*10 so that is the cost of skates for the 10 skaters
3. Finally the flat rate of 250 will stay the same no matter the number of skaters

Sooooo

($45+$15+$250=total pricing for 10 players!)



Sorry i dont know the booster/coaches problem

Show your work:

36+4kt/36-4kt


k=2

t=3

Answers

Step-by-step explanation: If I replace the variables with the numbers, the equation would be: 36+(4x2x3)/36-(4x2x3). First, solve the numbers in the parentheses. Both numbers in the parenthesis equals 24 because 4x2 is 8 and 8x3 is 24. Then, 36+24/36-24. PEMDAS, so 24/36 is 0.666666666667.  Then 36+0.666666666667 is 36.666666666667. Next, 36.666666666667 minus 24 is 12.666666666667.

A carton of eggs costs $3.18 . each carton contains a dozen eggs. How much does each egg cost?

Answers

Answer:

0.265

Step-by-step explanation:

It’s right 0.265 just do 3.18/12

Solve for y.

y - 2.16 = 6.13

Answers

6.13 + 2.16 = y
6.13 + 2.16 = 8.29
y = 8.26

A line has a slope of -6. Which of the following could describe two points on the line?
(−3,33)and (4,−9)

(−2,28) and (0,15)

(−5,45) and (−6,50)

None of the above

Answers

Answer:

Step-by-step explanation:

(-5,45) and (-6,50)

REPOST NO CLICK SPAM:

The length of human hair is proportional to the number of months it has grown.
STEP 1:a. What is the hair length in centimeters after 6 months? Round your answer to the nearest hundredth.
The hair length is about _ centimeters.

STEP 2:b. How long does it take hair to grow 8 inches?
It takes _ months.

STEP 3:c. Use a different method than the one in part (b) to find how long it takes hair to grow 20 inches.
It takes _ months.

Answers

Step-by-step explanation:

6 months : 3 inches

6 ÷ 3 = 2

The rate is 2 months : 1 inch

Applying the ratio...

16 months : 8 inches

40 moths : 20 inches

Answer:

please give me brainliest

Step-by-step explanation:

need help please I'm in class rn​

Answers

Answer:

its 100mm i believe

Step-by-step explanation:

Write the inequality shown by the graph with the boundary line.

y =?

Answers

Y> 4x+1
Your line is dotted meaning your function will not be equal to and the shaded section is going upward meaning your solutions will all be grader then the expression.
y > 4x +1
Because the graph is shaded above with a dotted line.

If we put withdraws and deposits in the same column, how can they be represented? (LOOK IN IMAGE)

Answers

Answer:

i dont know ask brainly.

Step-by-step explanation:

its a very hard question

Your friend solves the equation $-4.2x=21. Is your friend correct? yes or no? Explain your reasoning.

Answers

Answer:

yes

Step-by-step explanation:

I am  not for sure though, hope it helps anyway!

Answer:

yes

Step-by-step explanation:

The menu of a concession stand is shown on the board below. How many different ways can Elli buy 5 items from the menu for exactly $10?

Answers

Answer:

2

Step-by-step explanation:

2 x 5 = 10

(3 x 1) + (2 x 3) + (1 x 1) = 10

thats all I can think of for now

2 because 2x5=10 and 1x10=10 and 3 can’t get to 10 it can only reach 9

(f) A recipe calls for 1 1/2 cups of flour, 3/4 cup of white sugar, and 1/8 cup of brown sugar.
(a) How many total cups of ingredients are there? Show your work using a number line.
(b) Which of the following mixing bowls can you use to make the recipe: 2-cup, 3-cup, or 4-cup? Justify your answers.

Help please! remember show your work on a NUMBER LINE. rewarding 25 points and brainliest.

Answers

Answer:

a) 19/8

b) 3 cup since it's 2.4

Solve for t.



34t=14




t = 13

t = 1

t = 43

t = 4

Answers

Answer: none of these are correct

Step-by-step explanation:

if you divide 14 by 34, you get about 0.4117647059

Angle B and angle C are supplementary. If the measure of angle B is 14 times the measure of angle C, what is the measure of angle B?
Enter your answer as the correct value, like this: 42

Answers

Answer:

168

Step-by-step explanation:

b + c = 180

b = 14c

14c + c = 180

15c = 180

c = 12

b + c =180

b + 12 = 180

b = 168

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