MATHEMATICS HIGH SCHOOL

ladt month you used 125 minutes and your bill was $37.50. this month you used 175 minutes. how much was will your home phone bill be this month

Answers

Answer 1

Answer:

Answer: $52.5

Step-by-step explanation:

Given : Last month you used 125 minutes and your bill was $37.50.

i.e. Charges for each minute used = $(37.50)/(125)=\$0.3$

i.e. it charges $0.3 for each minute home phone used.

If this month you used 175 minutes.

Then , your this month's home phone bill will be :-

$175*0.3=\$52.5$

Hence, you month home phone bill will be $52.5 .

Answer 2

Answer: so 37.50/125=0.3

0.3*175=52.5

so his bill is $52.50

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Answers

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Answers

Answer:

Step-by-step explanation:

Step 1:

6x + 10 + 2x = 42 Equation

Step 2:

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Hope This Helps :)

ALGEBRA HELP, please help with problem, and show work

Answers

First of all, your second term is already wrong. When you divided 8x² by 4 ,
you should have written 2x² , not 4x² .

Make that correction, and then divide the whole thing by 'x'.

Then you'll have x² - 2x + 1 = 0 .

You should have no trouble solving that one,
(especially since it's a perfect square)

That gives you two (equal) solutions. But you should also ask yourself:
"Self ! Where is the third solution ? A cubic equation like the original
one needs three solutions."

I'll give you that one:
Look over the original equation, and look at what happens to it when x = 0 .
Then the left side becomes zero, and the equation is 0 = 0 . Since that's a
true statement, " x = 0 " is another solution of the cubic equation, and now
you have all three of them.

divide both sides by 4x:
x^2-2x+1=0
You can either factor, complete the square, or use the quadratic formula.
I'll factor this into (x-1)(x-1)=0
x-1=0, so x=1

Determine the type and number of solutions of 4x^2-5x+1=0.A. Two real solutions
B. One real solution
C. Two imaginary solutions

Answers

4x² - 5x + 1 = 0
a = 4; b = - 5, c = 1
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Δ = (-5)² - 4.4.1
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x = - b ± √Δ / 2.a
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$x = (-5\±3)/(8)$
$x' = (-5-3)/(8) = (-8)/(8) = -1$
$x' = (-5+3)/(8) = (-2)/(8) (/2) = (-1)/(4)$

A. Two real solutions (x' = -1 and x'' = -1/4)

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Answers

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Each of the other choices IS equivalent to it.

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