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Kipish [7]
3 years ago
8

Show all steps to solve: 3( 1/6+2/9) + (-2)

Mathematics
1 answer:
Alex73 [517]3 years ago
6 0

Answer:

-5/6

Step-by-step explanation:

3(1/6+2/9)+(-2)

3(7/18)+(-2)     working what is in parenthesis.

7/6-2              reduced the numbers ( 3 and 18) with greatest common divisor                      .                     which is 3

-5/6                calculate the difference

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Step-by-step explanation:

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4 years ago
When Elena makes bird food, she usually mixes 9 cups of seeds with 6 tablespoons of maple syrup. However, today she is short on
svetlana [45]

Answer:3 cups of seeds and 2 tablespoons of maple syrup

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6 cups of seeds and 4 tablespoons of maple syrup

Step-by-step explanation:

As this is a ratio of 9:6: "for every 9 cups of seeds, there is 6 tablespoons of maple syrup"

The original ratio is 3:2 "for every 3 cups of seeds, there is 2 tablespoons of maple syrup"

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3 years ago
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riadik2000 [5.3K]

Answer:

a) System of equations will be:  x+y=500\: and\:5x+2y=1789

b) Number of adult tickets sold =  263

Number of students tickets sold =  237

Step-by-step explanation:

Let:

Number of adult tickets sold = x

Number of students tickets sold = y

a)

As Marc sold total 500 tickets, the expression will be: x+y=500

Student tickets cost $2 and adult tickets cost $5. Marc's sales totalled $1,789.

The expression will be: 5x+2y=1789

So, system of equations will be:  x+y=500\: and\:5x+2y=1789

b)

Solve the system to find value of x and y

Let:

x+y=500--eq(1)\\5x+2y=1789--eq(2)

Multiply equation 1 by 2 and subtract

2x+2y=1000\\5x+2y=1789\\-\:\:\:-\:\:\:\:\:\:\:\:\:-\\------\\-3x=-789\\x=\frac{-789}{-3}\\x=263

We get value of x = 263

Now finding value of y by putting value of x in eq(1)

x+y=500\\263+y=500\\y=500-263\\y=237

We get value of y = 237

Number of adult tickets sold = x = 263

Number of students tickets sold = y = 237

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