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3 years ago

Finish solving the system of equations -9.5x -2.5y = -4.3 and 7x + 2.5y = 0.8 using the linear combination method.

Mathematics

1 answer:

muminat3 years ago

4 0

Answer:

y= -3.6

Step-by-step explanation:

-9.5(1.4)-2.5y=-4.3

-13.3-2.5y=-4.3

-9=2.5y

y=-3.6

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Step-by-step explanation:

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3 years ago

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Answer:

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Answer:

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Step-by-step explanation:

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2 years ago

1. Choose the graph that represents the equation y = -x] - 1.

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Answer:

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Step-by-step explanation:

y=−x−1

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5 0

3 years ago

For every 1 litre of water used to make a medicine, 269ml of sucrose and 47ml of saline solution are used. Express the amount of

leonid [27]

Answer:

1000 : 269 : 47

Step-by-step explanation:

A ratio is a way of comparing the value or amount of one quantity to another.

We are to find the ration of water to sucrose to saline solution, hence, it must remain in that order.

Water : Sucrose : Saline solution

The amount of water is 1 litre (1 * 1000 ml = 1000 ml)

The amount of sucrose is 269 ml

The amount of saline solution is 47 ml

Therefore, the ratio of water to sucrose to saline solution is:

W : S : SS = 1000 : 269 : 47

Since 1000, 269 and 47 have no common factors, that is the simplest form of the ratio.

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3 years ago