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2 years ago

Solve the system of equations using elimination. How many solutions does the system have?

Mathematics

1 answer:

Mariana [72]2 years ago

7 0

Answer:

infinite solutions

Step-by-step explanation:

The coefficient of x in the first equation is 3 times the coefficient of x in the second equation. This means we can eliminate x by subtracting 3 times the second equation from the first:

(15x +12y) -3(5x +4y) = (18) -3(6)

0 = 0 . . . . . simplify (true for all values of x or y)

The system of equations has an infinite number of solutions.

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F(x) = -6x + 4<br> f (x) = 28

Eva8 [605]

Answer:

x = - 4

Step-by-step explanation:

Given f(x) = - 6x + 4 and f(x) = 28, then equating

- 6x + 4 = 28 ( subtract 4 from both sides )

- 6x = 24 ( divide both sides by - 6 )

x = - 4

4 0

3 years ago

Can someone help me solve this?

lozanna [386]

Answer:

what uhhhhhh

Step-by-step explanation:

6 0

3 years ago

A commercial package contains thirty-six 200-mg tablets of ibuprofen. How many kilograms of ibuprofen were

PIT_PIT [208]

Answer: 0.0072 kilogram

Step-by-step explanation:

Given : The mass of one tablet of ibuprofen =200 mg

Then, the mass of 36 tablets of ibuprofen = $36\times200$ mg

i.e. the mass of 36 tablets of ibuprofen = $7200$ mg

We know that 1 kilogram = 1000 grams

and 1 gram = 1000 milligram

Then, 1 kilogram = $1000,000$ milligrams

Then, $\text{1 mg}=\dfrac{1}{1000,000}\text{ kg}$

Now, $\text{7200 mg}=\dfrac{7200}{1000,000}=0.0072\text{ kg}$

Hence, A commercial package contains 0.0072 kilogram of ibuprofen.

3 0

3 years ago

The radius of the Earth is roughly twice the radius of the planet Mars. Raj claims that the volume of the Earth must therefore b

Volgvan

The claim is incorrect. Treating the planets as basic spheres, the formula of the volume of a sphere states that volume = (4/3)(pi*r^3), where r is the radius. Since r is raised to the power of three, then doubling the radius would result in a volume that is 8 times larger than the original.

5 0

4 years ago

The rule for the following table is, "y equals 9 less than the triple of x."

goblinko [34]

Y=3x-9
So when x is 16

Y=3(16)-9
Y=48-9
Y=39

The answer is c

4 0

3 years ago