The principal wanted to buy 8 pencils for every student at her school.If there are 859 students, how many pencils do the principal need to buy?

Answers

Answer 1

Answer: 859 x 8 = 6,872. 6,872 pencils are needed.

Answer 2

Answer: multiply the number of total students by the number of pencils each student is going to get

859 students x 8 pencils per student = 6,872 total pencils that the principal has to buy so that each student can have 8 pencils

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Answers

Answer:

Step-by-step explanation:

3x+y=4
2x+y=5
solve using linear combination

Answers

Idk what linear combination is but you can solve this way:
3x+y=4
-2x-y=-5
x=-1
3(-1)+y=4
-3+y=4
y=7
So x=-1 and y=7

Answer:

(-1,7)

Step-by-step explanation:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

marcy has 567 earmuffs in stock if she can put 18 earmuffs on each shelf about how many shevles does she need for all the earmuffs

Answers

To get our answer we divide 567 by 18
567 ÷ 18 = 31
your answer is 31

567/18 = 31.5 shelves
i would round to 32 because you can't have half a shelf.

What are these number from least to greatest: 2.58, 2 5/8, 2.6, 2 2/3

Answers

2.58, 2.6, 2 5/8, 2 2/3

12+5x=7x+3 solve for x. show your work.

Answers

1st: 12+5x=7x+3-3
2nd: 9+5x=7x
3rd: 9+5x-5x=7x-5x
4th: 9=2x
5th: 9/2=2x/2
6th x=4.5
CHECK:12 +5x4.5=7x4.5+3
12+22.5=31.5+3
34.5=34.5
X=4.5

The first thing you should do is get x on one side.

12+5x=7x+3

12+5x-5x=7x-5x+3

12=2x+3
Now that you've done that you must get the 2x by itself. You can do this by subtracting 3 from both sides.

12-3=2x+3-3

9=2x

Remember, you would only subtract if the number next to x is positive. If it is negative you would add. (Ex. 12=5x-3,12+3=5x-3+3, 15/5=5x/5, 3=x)

Now, you must divide both sides by 2 to get x by itself.

9/2=2x/2

Therefore your answer is 4.5=x
Now you have your X by itself. Hope this helps.

a hotel offers to activity packages. One cost $192 and includes three hours of horseback riding and two hours of parasailing. The second cost to $213 and includes two hours of horseback riding and three hours of parasailing. What is the cost for 1 hours of each activity

Answers

3h + 2p = 192 -->(-2) 2h + 3p = 213 -->(3) ------------- -6h - 4p = - 384 (result of multiplying by -2) 6h + 9p = 639 (result of multiplying by 3) --------------add 5p = 255 p = 255/5 p = 51 now sub 51 in for p in either of the original equations to find h 3h + 2p = 192 3h + 2(51) = 192 3h + 102 = 192 3h = 192 - 102 3h = 90 h = 90/3 h = 30 check... 3h + 2p = 192 2h + 3p = 213 3(30) + 2(51) = 192 2(30) + 3(51) = 213 90 + 102 = 192 60 + 153 = 213 192 = 192 (correct) 213 = 213 (correct) 1 hr of horseback riding (h) costs $ 30 1 hr of para-sailing (p) costs $ 51

The first part of the math question is 64.3 and I think for the second part of the question as far as going parasailing is 71

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