What is the difference between -31 to 28

Answers

Answer 1

Answer: - - To find the difference: Subtract.

$-31-28=-59$

And when finding the absolute value, it reams positive, so:
59 is your final answer.

Answer 2

Answer: the answer is -3
just subtract the two numbers

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Tom has 100 baseball cards and 120 football cards. What is the ratio of baseball cards to football cards?

Please help me, this is quite hard

Answers

$d=√((x_2-x_1)^2+(y_2-y_1)^2)\n\nd=√((-7-(-1))^2+(6-(-2))^2)\nd=√((-6)^2+(8)^2)\nd=√(36+64)\nd=√(100)\nd=10$

Sebastian swam laps every day in the community swimming pool. He swam 45 minutes each day, 5 days a week, for 12 weeks. In that time, he swam 1,800 laps. What was his average rate in laps per hour?

Answers

Answer:

925.235 or 23/567.6

Step-by-step explanation:

Bill says he can add 23 and 40 without regrouping. Is bill correct? How do you know?

Answers

Answer:

Step-by-step explanation:

Yes bill is correct because both numbers are easy to add without regrouping, since when each of the digit are added there won't be carried over. Also, I believe Bill should be able to do simple mathematics like 2+3, 3+5 and so on.

Then, he should be able to add 3 plus 0 in his head and keep the result as 3. And then add the other 2+4 and he will put the two result together as 63

Yes Bill is correct because
3+0 you don't have to regroup
And 4+2 you don't have to regroup
hope this helps

What two numbers multiply to -11 and add to 18

Answers

They're both irrational numbers, so they can't be written down exactly

Rounded to the nearest thousandth, they are

   18.592
and
    - 0.592 .

Just in case you actually intended to write "add to -11 and multiply to 18",
then the two numbers are

   - 9
and
   - 2 .

1.1. Kalvin always has cereal for breakfast. He likes Cocoa Blast cereal, but his mother wants him to eat Heath Nut Flakes at least some mornings.Kalvin and his mother agree to leave the cereal problem to chance. Each morning Kalvin tosses a coin. If the coin lands on heads, he will have Cocoa Blast. If the coin lands on tails, he will have Heath Nut Flakes.

1.2. Kalvin wants to find something else to toss that will give him a better chance of eating his favorite cereal each morning. He wonders if a paper cup would be a good thing to toss.

Because Kalvin wants to eat Cocoa Blast more of the time, he needs to determine if the cup lands in one position more often than another. If so, he will ask to toss a paper cup instead of a coin.

1. Kalvin tosses a paper cup once a day for a year to determine his breakfast cereal. Use your results from problem 1.2 to determine the following.

a. How many times do you expect the cup to land on its side? On one of its ends?

b. How many times do you expect Kalvin to eat Cocoa Blast in a month? In a year? Explain.

The cup lands on its side 80%(0.8) of the time, while it lands on its edges 20%(0.2) of the time, Heads on a coin would be equal to the cup landing on its side, and landing on its edges would be equal to a coin landing on tails.

Answers

A. 292 days on its side, 73 on its ends

B. 292 days of the year and depends on how many days are in the month

Jerome, Kevin, and Seth shared a submarine sandwich.Jerome ate 1/2 of the sandwich, Kevin ate 1/3 of the
sandwich, and Seth ate the rest. What is the ratio of
Jerome’s share to Kevin’s share to Seth’s share?
A. 2:3:6
B. 2:6:3
C. 3:1:2
D. 3:2:1
E. 6:3:2

Answers

Seth at 1 - 1/2 - 1/3 = 1/6 of the sandwich.

Therefore the ratio is:

1/2 : 1/3 : 1/6

Multiply everything by 6:

3: 2: 1 D

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