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liubo4ka [24]
4 years ago
14

A cell phone company charges a flat rate of

Mathematics
1 answer:
liraira [26]4 years ago
6 0

Answer:

465 minutes or 8 hours and 15 minutes

Step-by-step explanation:

her monthly bill was 72.25 and she has to pay 2.50 per month

72.25 - 2.50 = 69.75

69.75/ 0.15 = 645 minutes

645 minutes/ 60 minutes= 7.75 = 8 hours 15 minutes

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Please help me with this
PSYCHO15rus [73]

Answer:

Step-by-step explanation:

Both angles added together = 180 degrees. They both have a straight line as their base.

So let <ABC = x

Then <CBD = 3x      Add the two angles

x + 3x = 180              Combine

4x = 180                    Divide by 4

4x/4 = 180/4

x = 45

So 3x = 3*45 = 135

6 0
2 years ago
Pamela ran 7/10 mile on Tuesday and 3/8 mile on Thursday. How much fatter did she run on Tuesday ?
Len [333]

Answer:

Difference = \frac{13}{40}

Step-by-step explanation:

Given

Thursday = \frac{3}{8}\ mile

Tuesday = \frac{7}{10}\ mile

Required

How much farther is she on Tuesday

To do this, we simply calculate the difference between distance covered on both days.

Difference = Tuesday-Thursday

Difference = \frac{7}{10} -  \frac{3}{8}

Take LCM

Difference = \frac{28- 15}{40}

Difference = \frac{13}{40}

<em>Hence, she ran 13/40 mile farther on Tuesday</em>

3 0
3 years ago
Adding/Subtracting rational expressions
Leona [35]
7]
 6/(x-1)-5x/4
subtracting the above we put the fraction under the same denominator:
 6/(x-1)-5x/4
multiplying the denominators we get:
4(x-1)
thus subtracting we get:
6/(x-1)-5x/4
=(4*6-5x(x-1))/[4(x-1)]
=[24-5x^2+5x]/(4x-4)
Answer:
(-5x^2+5x+24)/(4x-4)


9]
3/(x+7)+4/(x-8)
the common denominator is:
(x+7)*(x-8)=(x+7)(x-8)
thus adding the fractions we put them under the same denominator as follows:
[3(x-8)+4(x+7)]/[(x+7)(x-8)]
=[3x-24+4x+28]/[(x+7)(x-8)]
=(7x+4)/[(x+7)(x-8)]

5 0
3 years ago
PLEASE HELP NEED ASAP
babymother [125]
What the formula?
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7 0
3 years ago
Select the correct answer.<br> Which graph represents the given exponential function?
Allushta [10]

Answer:

the ans is C..... good luck

7 0
3 years ago
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