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3 years ago

PLS HELP ME ASAP FOR 8, 9, 10, and 11!!! (SHOW WORK!!! FOR ALL SHOW WORK!!!!! +LOTS OF POINTS!!

Mathematics

2 answers:

Hoochie [10]3 years ago

8 0

8. 4j -2j -5k +3k (combine like terms)

2j -2k

B

9. -6m+4m +2n-3n
-2m-1n

D

10. ( 2x-1) + (3x-1) +(3x-1)
2x+3x+3x -1-1-1
8x-3

D

Dovator [93]3 years ago

7 0

8. B 9. D 10. D 11A. -4r+2s-9

For all of them you just combine like terms, or in other words combine the sections that have the same variable.

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Exactly 1 1/3 yard of ribbon is needed to make a bow. Which of the following lengths of ribbon could be used to make a bow with

svp [43]

Answer:

1 and 2/5 yards wastes only 1/15 a yard

Step-by-step explanation:

1 and 1/6 yards would make a waste of 1 and 1/6 yards since you can't make a ribbon out of it. (incorrect)

1 and 2/10 yards would make a waste of 1 and 1/5 yards since you can't make a ribbon out of it. (incorrect)

1 and 2/5 yards

$1\frac{2}{5} -1\frac{1}{3} =\\\\1\frac{6}{15} -1\frac{5}{15} =\\\\\frac{1}{15}$

Wastes 1/15 a yard.

1 and 1/2 yards

$1\frac{1}{2} -1\frac{1}{3} =\\\\1\frac{3}{6} -1\frac{2}{6} =\\\\\frac{1}{6}$

It wastes 1/6 a yard.

2 yards

$2-1\frac{1}{3} =\frac{2}{3}$

It wastes 4/6 a yard.

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inysia [295]

Answer:

Step-by-step explanation:

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Solve each of the following equations. Be make sure to check your solutions. Solve for part b only.

Alona [7]

Answer:

or, 3x-5=2.5x+3-x+4

or, 3x-1.5x=7+5

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3 years ago

During Christmas a book store sold 30 books. If the ratio of books go bookmarks sold was 10:1 ,how many bookmarks did the store

Snowcat [4.5K]

<span>books to bookmarks
books : bookmarks
10 : 1
10 * 3 : 1 * 3
30 : 3
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Since the book store sold 30 books they also sold 3 bookmarks.

Answer: 3 bookmarks</span>

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3 years ago