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kobusy [5.1K]
3 years ago
6

Write four solution of the equation=2x+y=7​

Mathematics
1 answer:
Fantom [35]3 years ago
4 0

Step-by-step explanation:

x = 1, y = 5

x = 2, y = 3

x =3, y= 1

x=4 y=-1

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Select the correct answer. If a six-sided die is rolled 30 times, how many times can you expect to get a 6? A. 3 B. 5 C. 6 D. 10
lidiya [134]

There are 6 numbers on a die.

The probability of rolling a 6 would be 1/6 for each time you roll the die.

Multiply the number of rolls by 1/6.

30 rolls x 1/6 probability = 5 times.

The answer is B. 5

4 0
3 years ago
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Bryan and Jadyn had barbeque potato chips and soda at a football party. Bryan ate 4 oz of chips and drank 1 cup of soda for a to
Inga [223]

Answer:

1 oz of chips has 140 mg of sodium, and 1 cup of soda has 40 mg of sodium.

Step-by-step explanation:

This question is solved by a system of equations.

I am going to say that:

x is the amount of sodium in 1oz of chips.

y is the amount of sodium in 1 cup of soda.

Bryan ate 4 oz of chips and drank 1 cup of soda for a total of 600mg of sodium.

This means that 4x + y = 600, also y = 600 - 4x

Jadyn ate 1 oz of chips and drank 4 cups of soda for a total of 300mg of sodium.

This means that:

x + 4y = 300

From the first equation, we have that y = 600 - 4x. So

x + 4(600 - 4x) = 300

x + 2400 - 16x = 300

15x = 2100

x = \frac{2100}{15}

x = 140

y = 600 - 4x = 600 - 4*140 = 40

1 oz of chips has 140 mg of sodium, and 1 cup of soda has 40 mg of sodium.

4 0
3 years ago
Simplfy: -1| 2/3 - 4| / 5/6
never [62]

Step-by-step explanation:

-1| 2/3 - 4| / 5/6

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7 0
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A building has 816 feet tall and it has 102 floors, each floor is the same height. How tall is each floor?
Lostsunrise [7]

Answer:

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Step-by-step explanation:

Divide 816 by 102 to get 8 feet.

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Answer:

A-3 because 5+8=3, 10+3 doubled=16, and so on so on

Step-by-step explanation:

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