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babymother [125]
3 years ago
6

A phone plan costs $15 a month for up to 500 minutes of calls Each minute above 500 costs an extra $0.02

Mathematics
1 answer:
scoundrel [369]3 years ago
7 0
$15 and $17 !!!!!!!!!!!
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I need help solving this pls
Oksana_A [137]

Answer:

Adding them together. x = 3/2, y = 8

Step-by-step explanation:

Adding because we want to get rid of a variable. If we add, 2x + 6x = 8x, 1/2 * y + (-1/2 * y) = 0, and 7 + 5 = 12. Adding gets rid of the y variable.

By adding we get that 8x = 12 which gives us x = 12/8 = 3/2

Substituting this back into either equation will give us y = 8.

8 0
2 years ago
Last week 40 fifth graders went on a field trip to the science museum.
Artist 52 [7]
PART ONE:
To put this information into a fraction you write part over whole:
 8/40

To change this into a decimal you have to plug in 8÷40 into your calculator:
0.2

PART TWO:
After you subtract 8 from 40, there are 32 fifth graders left.
The fraction will look like this:
32/40

To change this into a decimal you have to plug in 32÷40 into your calculator:
0.8

I hope this was helpful!
7 0
3 years ago
And object has a mass of five KG what force is needed to accelerate it at 6m/s2
ivann1987 [24]

Answer:30N

Step-by-step explanation:

Mass=5kg

Acceleration=6m/s^2

Force =mass x acceleration

Force =5 x 6

Force=30N

4 0
3 years ago
Jan is x years old, her sister is twice as old as her, and her brother is three times older than her. Their ages add up to 29. H
victus00 [196]

Jan's age = 4\frac{5}{6} years

Sister's age =9\frac{2}{3} \: years

Step-by-step explanation:

Jan's age = x years

Sister's age = 2x years

Brother's age = 3x years

According to the given condition:

x + 2x + 3x = 29

6x = 29

x = 29/6

x = 4\frac{5}{6} years

2x = 2\times \frac{29}{6}= \frac{29}{3}=9\frac{2}{3} \: years

Therefore,

Jan's age = 4\frac{5}{6} years

Sister's age =9\frac{2}{3} \: years

3 0
3 years ago
You join an Internet service. You get the first 5 hours for free, and then you pay $2 per hour. How many hours of Internet use,
Vika [28.1K]

Answer:

27

Step-by-step explanation:

firstly we know we get 5 hour free so we know that when we add our total it will go up by 5. an easy way to do the equation is to take 45 and divide by two because we are essentially paying two of our 45 dollars every hour. this means that we will get half the amount we pay in hours. 45/2 =22.5 (do not round up because you will only get what you pay for and if you cant pay for a full hour you just do not get it) 22+5=27. so you get 27 hours of internet.

5 0
2 years ago
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