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Liono4ka [1.6K]
3 years ago
9

Marsha's class is planting 120 trees as part of a community volunteer project. The class plants pine trees and oak trees in a ra

tio of 3 to 1. How many pine trees does Marsha's class plant?​
Mathematics
1 answer:
Ivanshal [37]3 years ago
6 0

Answer:

pine:oak=3:1

pine=3/4*120

pine=90 trees

Step-by-step explanation:

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Eya is 5 years younger than 3 times Bills age. If Eya is 28 how old is Bill?
Sedaia [141]
Bill's age = x

Eya's age = 3x - 5

Eya is 28

28 = 3x - 5

28 (+5) = 3x -5 (+5)

33 = 3x

33/3 = 3x/3

x = 11

Bill = x

x = 11

Bill is 11 years old

hope this helps
4 0
4 years ago
Hillary is reading a book that is 200 pages long she has already read 72 pages so far what percent of the book has it she comple
mezya [45]
I would say about 80%

6 0
4 years ago
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4) The mass of a chest is 498 kg when it is 1/2 filled with treasure.
mote1985 [20]

Answer:

926kg

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3 0
3 years ago
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You have a square that has a side length of $1$ centimeter. Each minute, $2$ centimeters are added to the side length. After $10
Mariulka [41]

Answer:

Difference in area of the last square and the initial square = 440 cm²

Step-by-step explanation:

Length of the side of a square = 1 cm

Area of the square = (side)² = 1 cm²

Addition of side length every minute = 2 cm

After x minutes length of each side of the square = (1 + 2x) cm

If x = 10 minutes

Length of each side of the square = [1 + 2(10)]

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Area of the square after 10 minutes = (21)²

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Therefore, difference in area of the last square and area of the initial square

= 441 - 1

= 440 cm²

5 0
3 years ago
I'm having trouble solving this problem help asap
Nikitich [7]
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3 years ago
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