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3 years ago

How do you solve an equation in one variable

1 answer:

5 0

Is this what you mean? 3x+4x+6=13
Ok if this is it then you combine like terms.
In this case our like terms are 3x and 4x.
That will give us:
7x+6=13
Now subtract 6 from each side.
7x= 7
Divide each side by 7
X= 1

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3 years ago

The cell phone plan from Company C costs $10 per month, plus $15 per gigabyte for data used. The plan from Company D costs $80 p

Eddi Din [679]

Answer:

C(g) = 10 + 15g

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The monthly charges of Company C for using 2 Gigabyte of data usage.

Step-by-step explanation:

The cell phone plan from Company C costs $10 per month, plus $15 per gigabyte for data used. The plan from Company D costs $80 per month, with unlimited data.

Now, the monthly cost in Company C for using g gigabyte of data will be

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Again, the monthly cost in Company D for using g gigabyte of data will be

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3 years ago

−3(2+4k)+7(2k−1) eqivalent expression

Alex17521 [72]

Answer:

$\large\boxed{-3(2+4k)+7(2k-1)=2k-13}$

Step-by-step explanation:

$-3(2+4k)+7(2k-1)\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\=(-3)(2)+(-3)(4k)+(7)(2k)+(7)(-1)\\\\=-6-12k+14k-7\qquad\text{combine like terms}\\\\=(-12k+14k)+(-6-7)\\\\=2k-13$

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3 years ago

suppose our school is having a talent show to raise money for new music supplies .you estimate that 200 students and 150 adults

solong [7]

Maybe something like:
200s + 105a + 200 = 1,000
You can use x and y instead of s for student and a for adult.
Are the adults and students charged the same? If so then:
200x + 105x + 200 = 1,000

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3 years ago

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