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3 years ago

Solve using linear combination. Show all work. 9X + 5Y 35 And -2x-5y=0

Mathematics

2 answers:

BARSIC [14]3 years ago

5 0

Answer:

x=5, y=-2

Step-by-step explanation:

9x + 5y =35

-2x-5y=0

Add the equations together

9x + 5y =35

-2x-5y=0

----------------------

7x = 35

Divide each side by 7

7x/7 = 35/7

x = 5

Now find y

9x+5y = 35

9(5) +5y = 35

45 +5y =35

Subtract 45 from each side

45-45 +5y = 35-45

5y = -10

Divide each side by 5

5y/5=-10/5

y = -2

Mice21 [21]3 years ago

5 0

Answer:

solve your equation then Subtract 2x from both sides next Subtract 2 from both sides. last Divide both sides by 2

Step-by-step explanation:

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Answer:

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The equation of a line in slope- intercept form is

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Given

- 5x + 3y = - 9 ( add 5x to both sides )

3y = 5x - 9 ( divide the terms by 3 )

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3 years ago

N − 7.32 / 2 = 1.04<br><br> What is "n"?

Pachacha [2.7K]

Answer:

n= 4.7

Step-by-step explanation:

n+−3.66=1.04

n−3.66=1.04

Step 2: Add 3.66 to both sides.

n−3.66+3.66=1.04+3.66

n=4.7

Answer:

n=4.7

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3 years ago

What value of r makes the equation true?

Svet_ta [14]

R would have to be equal to 0.08 in order for it to be true.

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3 years ago

[(e^x -e^-x)/(e^x + e^-x)] = 1/3

mr_godi [17]

Answer:

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Step-by-step explanation:

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3 years ago

A 16-ounce bottle of orange juice says that it contains 200 milligrams of vitamin C, which is 250% of the daily recommended dosa

Andrei [34K]

80 milligrams is the amount of vitamin C that is considered to be 100% of the daily recommended requirement for adults.

<h3>What is the daily recommended dosage of vitamin C for adults? </h3>

Parameter

The amount of liquid included in the bottle is 16 ounces.
The vitamin C content of the bottle comes to a total of 200 milligrams.

Since the orange juice container that has a capacity of 16 ounces states that it has 200 milligrams of vitamin C, this means that it fulfills 250% of an adult's recommended daily requirement for vitamin C. Then, for one hundred percent of the daily allotment,

As a result, we are able to draw the conclusion that the amount of vitamin C that is considered to be 100% of the daily recommended requirement for people is 80 milligrams.