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denpristay [2]
3 years ago
8

4x - 3 ( x - 2 ) = 21

Mathematics
2 answers:
Alona [7]3 years ago
5 0

Answer:

x = 15

Step-by-step explanation:

4x - 3 ( x - 2 ) = 21

Distribute

4x -3x +6 = 21

Combine like terms

x+6 = 21

Subtract 6 from each side

x+6-6=21-6

x = 15

katovenus [111]3 years ago
5 0
4 x -3 x + 6 = 21
x + 6 = 21
x = 21 - 6
x = 15
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A forest cover 43,000 acres. A survey finds that 0.2% of the forest is old growth tress. How many acres of old growth trees are
Sveta_85 [38]

Given:

Total forest area = 43,000

Old growth trees forest = 0.2%

To find:

The area of the old growth trees.

Solution:

We have,

Total forest area = 43,000

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Area of the old growth trees = 0.2% of 43,000

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3 years ago
A test worth 125 points has 49 questions on it. Multiple Choice questions are worth 2 points each and short answer questions are
Charra [1.4K]

Answer:

There were 40 2-point questions and 9 3-point questions.

Step-by-step explanation:

To solve this situation, write two equations. One for the number of questions and one for the number of points.

Let x be the number of 2 point questions.

Let y be the number of 5 point questions.

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And since y are each worth 5 points, the total points is 5y.

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