Griffindore
  • Griffindore
I have a couple questions
Mathematics
chestercat
  • chestercat
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Griffindore
  • Griffindore
Craig wants to use an elevator to carry identical packages having the same weight. Each package weighs 4 pounds and Craig weighs 90 pounds. If the elevator can carry a maximum of 330 pounds at a time, which inequality shows the maximum number of packages, n, that Craig can carry with himself in the elevator if he is the only passenger? n ≥ 60 n ≤ 60 n ≤ 236 n ≥ 236
Griffindore
  • Griffindore
hey jk
Griffindore
  • Griffindore
i was gonna ask u this to but u left

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More answers

anonymous
  • anonymous
Hello! The elevator can't carry more then 330 pounds. Since he already weighs 90 pounds, The packages can't exceed 330-90.
Griffindore
  • Griffindore
ya i know that much
Griffindore
  • Griffindore
but why 330 to (90)
anonymous
  • anonymous
You then take that number 330-90, and divide by 4, to see how many packages he can carry. It's 330 to 90 because, we need to subtract his weight from the total amount the elevator can carry.
Griffindore
  • Griffindore
oh minus 90 wow thats easy i didnt even relize tysm can u do 1 more
Janu16
  • Janu16
Since Craig weighs 90 pounds we have to subtract 90 from the maximum capacity of the elevator: 330. That's 240 pounds. Then we decide 240 by 4 to find out how many packages he can carry so 240m divided by 4 is 60. This means that Craig can carry no more than 60 packages with him on the elevator so the answer is the second inequality.
Griffindore
  • Griffindore
wait is it a or b
Griffindore
  • Griffindore
wjat does n stand for
anonymous
  • anonymous
If you take 330 - 90, divide it by 4. Then you'll know the "maximum" that he can carry. The n stands for the number of packages.
Griffindore
  • Griffindore
oh ok so b
Janu16
  • Janu16
b
Janu16
  • Janu16
i explained on the top how its b
anonymous
  • anonymous
Yes. When you do the math you get b as your answer. Since n can't exceed the number.
Griffindore
  • Griffindore
The sum of three consecutive numbers is 72. What is the largest of these numbers? 23 25 26 28 what is the three consecutive numbers
Janu16
  • Janu16
(x-2)+(x-1)+x = 72 3x - 3 = 72 3x = 72+3 3x = 75 x = 75/3 x = 25 So the largest of the three consecutive numbers is 25.
Janu16
  • Janu16
hope it helps
Griffindore
  • Griffindore
i still dont get what the consecutive means, the largest number?
anonymous
  • anonymous
Consecutive means in a row, like 1, 2, 3, 4, 5....
Griffindore
  • Griffindore
oh ok
Griffindore
  • Griffindore
wait so is the question asking the next 3 numbers after the choices
anonymous
  • anonymous
In other words you are finding 3 numbers in a row that add to 72. You can use the formula (x+2)+(x+1) +x = 72 or think about what 3 numbers can add up to 72.
Griffindore
  • Griffindore
honestly i am still SUPER confused on what the question
anonymous
  • anonymous
The question is asking what are 3 numbers in a row that can add to 72. Then you have to find the largest of those 3 numbers.
Griffindore
  • Griffindore
is asking*
Griffindore
  • Griffindore
but i can only pick 1
anonymous
  • anonymous
Yes, so once you find the 3 numbers that add to 72, you pick the largest one.
Griffindore
  • Griffindore
oh ok
Griffindore
  • Griffindore
23 25 26 28 are the numbers
anonymous
  • anonymous
The "formulaic way" to solve it, is by using what @Janu16 said, but since that might be advanced for you, just think of 3 numbers in a row that add to 72. Then take the largest number from the 3. Than's how you get your answer.
Griffindore
  • Griffindore
wait can u just me an eample
anonymous
  • anonymous
3 Consecutive numbers that add to 9 is 2 + 3 + 4. The largest of those numbers is 4.
Griffindore
  • Griffindore
oh ok
Griffindore
  • Griffindore
ok so not a
Griffindore
  • Griffindore
oh its b
anonymous
  • anonymous
Right, all you have to do is find 3 numbers that add to 72, and find the largest one. You have to think. Yes, it's b.
Griffindore
  • Griffindore
ya i get it now tysm
Griffindore
  • Griffindore
one more question
Griffindore
  • Griffindore
how do u figure out the percentage of a number to be a number
Griffindore
  • Griffindore
like 15% of a 56-page book.
Janu16
  • Janu16
write the whole question

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