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3 years ago

A local tree farm is donating 50 trees. The students will plant some of the trees at the school and the rest at the library.

Mathematics

1 answer:

Alex17521 [72]3 years ago

8 0

Answer:

Step-by-step explanation:

First you know they have 50 trees. Then, you know 3 of 25 will die.

25*2=50. 3*2=6.

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The reciprocal of a number plus the reciprocal of three times the number equals 1/3. find the number.

Aleksandr-060686 [28]

1/x + 1/3x = 1/3
3+1=x
x=4

6 0

3 years ago

What is 3/4 plus 1 1/4?

bezimeni [28]

Answer:

14/4

Step-by-step explanation:

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3 years ago

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Please help meeeeeeeeeee

mixas84 [53]

Answer:

x=72

y=54

Step-by-step explanation:

1st question. y=54 because it is a bisector of the 108 degree angles. (a polygon's interior angles add to number of sides minus 2 times 180)

There are two ys, so they add up to 108. A triangle's interior angles add to 180. 180-108 =72 x=72

2nd question, x is 72 ( it says x is the same measure) so 180-72=2y.

y still equals 54

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3 years ago

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Paha777 [63]

Answer:

1st, 3rd, and 4th box.

Step-by-step explanation:

9^5=59049

9^2=81 9^3=729 729*81=59049 yes

9^5=59049 59049x9=531441 no

9^4=6561 6561*9=59049 yes

9^2=81 81x81=6561 6561*9=59049 yes

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3 years ago

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5-7y/2+4y equals -8/7

Ksenya-84 [330]

Answer:

$\boxed{y = 3}$

Step-by-step explanation:

$= > \frac{5 - 7y}{2 + 4y} = - \frac{8}{7} \\ \\ = > 7(5 - 7y) = - 8(2 + 4y) \\ \\ = > (7 \times 5) - (7 \times 7y) = ( - 8 \times 2) + ( - 8 \times 4y) \\ \\ = > 35 - 49y = - 16 - 32y \\ \\ = > 35 - 49y + 32y = - 16 \\ \\ = > 35 - 17y = - 16 \\ \\ = - 17y = - 16 - 35 \\ \\ = > \cancel{- }17y = \cancel{- } 51 \\ \\ = > 17y = 51 \\ \\ = > y = \frac{51}{17} \\ \\ = > y = 3$

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4 years ago