MATHEMATICS MIDDLE SCHOOL

Molly walked 3.45 miles on a hike. Her sister walked 1.23 miles. Her brother walked 0.85 miles. Round each distance to the nearest tenth of a mile.

About how much further did Molly walk than her brother and sister combined?

a) about 1.4 miles

b) about 1.2 miles

c) about 2.4 miles

d) about 2.2 miles

Answers

Answer 1
Answer:

____________________________________________________

Answer:

Your answer would be a) about 1.4 miles

____________________________________________________

Step-by-step explanation:

In order to solve this problem, we're going to need to round to the tenths place.

The tenths place is the decimal place to the right of the decimal.

Example: 0.54  --- 5 would be in the tenths place.

We would use the number next to it to see if we're going to round up or stay the same.

3.45 --- 4 is in the tenths place. When we look at the number next to it, 5, we would notice that it's big enough to make 4 round up. You would round 4 up to 5.

Your decimal should look like this: 3.5

1.23 --- 2 is in the tenths place. When you look at the number next to it, 3, it's not big enough for us to round it up, so we would keep the number 2 the same.

Your decimal should look like this: 1.2

0.85 --- 8 is in the tenths place. When you look at the number next to it, 5, you would see that it's big enough for you to round up, so you would round the 8 to a 9.

Your decimal should look like this: 0.9

Our rounded decimals:

3.5

1.2

0.9

Now, we have our rounded decimals. We're going to need to find how much Molly walked more than her sister and brother.

Molly walked 3.5

Her sister walked 1.2

Her brother walked 0.9

To solve that question, we would get 3.5 and subtract it with the rest of the numbers, since we are subtracting Molly's walk length to her brother and sister's combined walked length.

You should get 1.4

Therefore, Molly walked 1.4 miles more than her sister and brother combined.

A). about 1.4 miles should be your FINAL answer.

____________________________________________________


Related Questions

HIGH SCHOOL

A local charity sponsors a 5K race to raise money. It receives $25 per race entry and $5,000 in donations, but it must spend $5 per race entry to cover the cost of the race. Write and solve an inequality to determine the number of race entries the charity needs to raise more than $25,000. Show your work! Question 1 options:

Spell check

Answers

they receive 25 per entry but 5 goes towards the cost of the race

 so 25-5 = 20 per entry is for the charity

 so 20x + 5000 = 25000

subtract 5000 from each side

20x= 20000

 divide both sides by 20

 x = 20000/ 20  

x = 1000

 they need at least 1000 entries to make 25000

 so to make more than 25000, they need 1001 entries

MIDDLE SCHOOL

The sum of 5 consecutive integers is 120. What is the third number in the sequence?

Answers

5 consecutive integers can be written like
1. x
2. x+1
3. x+2
4. x+3
5. x+4

sum means add them all up.


combine like terms and solve for x.

remember it is looking for third in the sequence, so add 2 to your answer.

good luck!
HIGH SCHOOL

Suppose two drugs are routinely used for treatment of a particular kidney disorder. Drug 1 is known to cure the disease 85% of the time and costs $90. Drug 2 is known to cure the disease 70% of the time and costs $65. The two drugs work independent of each other (that is, administration of one has no effect on the efficacy of the other). The two treatment plans are as follows: Plan
a. Treatment with Drug 1—if not effective, treatment with Drug 2.
Plan
b. Treatment with Drug 2—if not effective, treatment with Drug 1.

Which statement is most correct in this situation?

a.Based on the overall probability of a cure, Plan A should be selected over Plan
b.
b.Based on the overall probability of a cure, Plan B should be selected over Plan
a.
c.Based on the overall cost of treatment, Plan A should be selected over Plan
b.
d.Based on the overall cost of treatment, Plan B should be selected over Plan
a.
e.Based on the probability of a cure and the cost of treatment, both plans are equivalent, so either can be selected.

Answers

The correct answer for the question that is being presented above is this one: "e.Based on the probability of a cure and the cost of treatment, both plans are equivalent, so either can be selected. Suppose two drugs are routinely used for treatment of a particular kidney disorder. Drug 1 is known to cure the disease 85% of the time and costs $90.

Answer:

Based on the overall probability of a cure, Plan B should be selected over Plan

Step-by-step explanation:

According to the problem, Drug 1 has the higher probability to cure disease, with a 85%.

Knowing this, Plan B is the best option, because implies using Drug 2 if Drug 1 doesn't work, that means this plan used Drug 1 in first place, which has the higher probability to cure.

In other words, it would be better if they use Drug 1 first, because if cost $25, but it has higher chances to cure. Because, if the use Drug 2 first, there're chances to fail, and that would imply higher expenses.

Therefore, the right answer is "Based on the overall probability of a cure, Plan B should be selected over Plan"

HIGH SCHOOL

What kind of transformation converts the graph of f(x)=6|x|-3 into the graph of g(x)=2|x|-1 Answers:
Horizontal Shrink
Vertical Stretch
Vertical Shrink
Horizontal Stretch

Answers

The answer to your question is horizontal stretch
COLLEGE

A number is called squarefree if it is not divisible by the square of a positive integer greater than one. find the number of square free positive integers less than 100.

Answers

Count the number of positive integers less than 100 that do not contain any perfect square factors greater than 1.

Possible perfect squares are the squares of integers 2-9.
In fact, only squares of primes need be considered, since for example, 6^2=36 actually contains factors 2^2 and 3^2.
Tabulate the number (in [ ])of integers containing factors of 
2^2=4: 4,8,12,16,...96 [24]
3^2=9: 9,18,....99  [11] 
5^2=25: 25,50,75  [3]
7^2=49:  49,98 [2]

So the total number of integers from 1 to 99
N=24+11+3+2=40
=>
Number of positive square-free integers below 100 = 99-40 = 59
HIGH SCHOOL

Is 1/6 greater than 1/5?

Answers

1/6 is less than 1/5. When you cross multiply both fractions to see which one is bigger, 1/5 turns out to be bigger. 1×5 & 1×6 (1/6×1/5)
No, because 1/6 is just 1 out of 6, while 1/5 is 1 out of 5, which is a greater percentage of the overall number.
COLLEGE

What is the volume of this right rectangular prism? Enter your answer as a decimal in the box. cm³ A rectangular prism with a length of 6.1 centimeters, a width of 5.4 centimeters, and a height of 8 centimeters.

Answers

The volume of the right rectangular prism is 263.52 cubic centimeters

How to determine the volume of the right rectangular prism?

The dimensions are given as:

  • Length = 6.1 centimeters
  • Width = 5.4 centimeters
  • Height = 8 centimeters

The volume is calculated using:

Volume = Length * Width * Height

This gives

Volume = 6.1 centimeters * 5.4 centimeters *8 centimeters

Evaluate the product

Volume = 263.52 cubic centimeters

Hence, the volume of the right rectangular prism is 263.52 cubic centimeters

Read more about volumes at:

brainly.com/question/1972490

The volume of a rectangular prism is equivalent to the equation Bh. But to find the base you must first do lw or in this equation 6.1 times 5.4. That equals to 32.94. You then use the height, or in this case 8 and multiply it times 32.94. Your final answer should be 263.52 cm. cubed.
MIDDLE SCHOOL

Rafael sold t-shirts and hats at a festival. He made a $3 profit for each t-shirt he sold. He also made a profit $45 from selling hats. If he made a total profit of $93, how many t-shirts did he sell?

Answers

Answer:

16

Step-by-step explanation:

The total profit is $93

He made a $45 profit selling hats

The question says he only sold t-shirts and hats

Since we are solving for the amount of t-shirts sold we subtract $45 from $93 and get $48 dollars earned from t-shirts

He makes $3 per t-shirt

We divide the amount per t-shirt by the total t-shirt money earned

This looks like: 48/3

We get 16 as our answer

HIGH SCHOOL

Steve finds the value of -12+18. Marion finds the value of -10-(-15). Whose expression has the greater value ?

Answers

Steve’s! Steve=6 & Marion=5

Random Questions
Question 12 (Essay Worth 5 points) (HC)The Emancipation Proclamation, excerpt BY THE PRESIDENT OF THE UNITED STATES OF AMERICA. A PROCLAMATION. I, ABRAHAM LINCOLN, President of the United States of America, and Commander-in-Chief of the Army and Navy thereof, do hereby proclaim and declare that hereafter, as heretofore, the war will be prosecuted for the object of practically restoring the constitutional relation between the United States, and each of the States, and the people thereof, in which States that relation is, or may be, suspended or disturbed. That it is my purpose, upon the next meeting of Congress to again recommend the adoption of a practical measure tendering pecuniary aid to the free acceptance or rejection of all slave States, so called, the people whereof may not then be in rebellion against the United States and which States may then have voluntarily adopted, or thereafter may voluntarily adopt, immediate or gradual abolishment of slavery within their respective limits; and that the effort to colonize persons of African descent, with their consent, upon this continent, or elsewhere, with the previously obtained consent of the Governments existing there, will be continued. That on the first day of January in the year of our Lord, one thousand eight hundred and sixty-three, all persons held as slaves within any State, or designated part of a State, the people whereof shall then be in rebellion against the United States shall be then, thenceforward, and forever free; and the executive government of the United States, including the military and naval authority thereof, will recognize and maintain the freedom of such persons, and will do no act or acts to repress such persons, or any of them, in any efforts they may make for their actual freedom. That the executive will, on the first day of January aforesaid, by proclamation, designate the States, and part of States, if any, in which the people thereof respectively, shall then be in rebellion against the United States; and the fact that any State, or the people thereof shall, on that day be, in good faith represented in the Congress of the United States, by members chosen thereto, at elections wherein a majority of the qualified voters of such State shall have participated, shall, in the absence of strong countervailing testimony, be deemed conclusive evidence that such State and the people thereof, are not then in rebellion against the United States. That attention is hereby called to an Act of Congress entitled "An Act to make an additional Article of War" approved March 13, 1862, and which act is in the words and figure following: ‘‘Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That hereafter the following shall be promulgated as an additional article of war for the government of the army of the United States, and shall be obeyed and observed as such: Article —. All officers or persons in the military or naval service of the United States are prohibited from employing any of the forces under their respective commands for the purpose of returning fugitives from service or labor, who may have escaped from any persons to whom such service or labor is claimed to be due, and any officer who shall be found guilty by a court-martial of violating this article shall be dismissed from the service. SEC. 2. And be it further enacted, That this act shall take effect from and after its passage." Why did Lincoln feel it was important to identify himself not only as president but also as commander-in-chief of the armed forces at the time of the Emancipation Proclamation? Be sure to use evidence from the text to support your answer.