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kolbaska11 [484]
3 years ago
11

Kathy's internet company charges a connection fee of 0.21 cents for each call and 0.06 cents per minute for each call she made f

rom her computer. Kathy was charged $1.95 for five calls in January. Write an equation that can be used to determine the number of minutes Kathy talked on 5 calls in January.
Mathematics
1 answer:
Sauron [17]3 years ago
7 0
1.95 = .21(5) + .06m

1.95 = 1.05 + .06m

Solving (if needed)
Subtract 1.05 from each side
1.95 - 1.05 = .06m
.90 = .06m
Divide .06 on both sides
15 = m
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Answer:

20. x\left(x-6\right)\left(x+8\right)

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Step-by-step explanation:

20. x^3+2x^{2} -48x

The GCF is x, so you group it out of the equation first.

x(x^{2} +2x-48)

Then, you find 2 numbers that will equal to 2 when you add them and will equal to -48 when you multiply them.

?+?=2\\?*?=-48

The two numbers would be -6 and 8. You then differentiate the squares.

x\left(x-6\right)\left(x+8\right)

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2(x^{2} +5x+4)

Find the two numbers that will equal to 5 when you add them and will equal to 4 when you multiply them.

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The two numbers would be 1 and 4. Finally, differentiate the squares.

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The GCF is 5m, so you must group it out.

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Find the two numbers that will equal to 6 when you add them and will equal to -7 when you multiply them.

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Step-by-step explanation:

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Answer:

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4 0
3 years ago
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natita [175]

Answer: the length of each of the two equal sides is 25 centimeters

Step-by-step explanation:

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Let y represent the length of the third side.

The perimeter of a triangle is expressed as the sum of the length of each side of the triangle. The perimeter of the isosceles triangle is 65 centimeters. It means that

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3 years ago
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