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Andrews [41]
3 years ago
8

What is 5-(n-4)=3(n+2)?

Mathematics
1 answer:
cestrela7 [59]3 years ago
6 0

Answer:

-3n-6

Step-by-step explanation:

multiply each term by 3

-3(n+2)

-3n-3*2

-3n-6

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Sunnydale elementary school is having its annual read-a-thon.the third grader have read 573 books so far.their goal is to read m
Vera_Pavlovna [14]
900-573=327 To reach their goal the least amount of books they need to read is 327
5 0
3 years ago
A radiator contains 10 quarts of fluid, 30% of which is antifreeze. How much fluid should be drained and replaced with pure anti
babymother [125]

Answer:

1 3/7 quarts should be drained off and replaced with pure antifreeze.

1 3/7 ≈ 1.4286

Current amount of antifreeze in quarts is -

30/ 100 × 10 = 3

40% ---> 4 quarts

Let the amount drained of and replaced with antifreeze be x-

The amount left after draining off is 10 − x.

The amount of antifreeze  is 30/ 100 (10−x).

30/100(10-x)+x=4

3-3/10x+x=4

3+x(1-3/10)=4

x=1*10/7=1 3/7 quarts

check;

10- 1 3/7 = 8 4/7

=(30/100*8 4/7)+1 3/7

=(3/10 * 60/7) + 10/7

=3*6/7 + 10/7

=28/7

=4

4 liters of pure antifreeze is mixed into 10 quarts.

8 0
3 years ago
Hii<br> Help plzz anyone!!
natka813 [3]

Answer:

It's just addition and subtraction.

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
What is 380 when it is increased by 18%
Yuri [45]
18%=0.18
380×0.18=68.4 increase
380+68.4=448.4

the easier way is to think 1 times any number is the same number so 380(1+0.18)=448.4 (just like adding tax to the price of something to see how much you'll actually pay)
6 0
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Which describes the correct way to convert minutes to hours? Divide the number of minutes by 24 Multiply the number of minutes b
fenix001 [56]

Answer:

divide the number of minutes to hours

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3 years ago
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