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LekaFEV [45]
2 years ago
12

Which number is rational?

Mathematics
2 answers:
Alexus [3.1K]2 years ago
6 0

Answer:

0.333...

Step-by-step explanation:

since it's forever repeating it still counts as rational

Delvig [45]2 years ago
6 0

Answer:

option b is right......

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7
Marat540 [252]

Answer:

Plan A equation:   y = 10x + 30

Plan B equation:  y = x + 80

Plan C equation: y = 5x + 50

Plan A costs the same as Plan C in 4 months

Plan A is the better option if you use 0 - 4 GBs of data each month

Plan B becomes the better deal when 8 months pass

Step-by-step explanation:

<u>When does Plan A cost the same as Plan C?</u>

Set the equations equal to each other (the cost) and solve for x (time in months)

10x + 30 = 5x + 50

5x = 20

x = 4 months

<u>Which plan is best if you only use 0-4 GBs of data a month?</u>

Test the maximum and minimum values to check which plan costs less

At 0 GBs of data used per month

Plan A:  y = 0 + $ 30 = $30 total

Plan B: y = 0 +$80 = $80 total

Plan C: y = 0 + $50 = $50 total

At 4 GBs of data used per month

Plan A: y = $ 40 + $ 30 = $ 70

Plan B: y = $ 4 + $ 80 = $ 84

Plan C: y = $ 20 + $ 50 = $ 70

Comparing the plans at maximum and minimum amount of GBs used, only one plan has the lowest cost overall. Even though Plan C is the same price at 4 GBs as Plan A, when you use 0 GBs you will end up paying more in Plan C than Plan A. Therefore, Plan A is the better option

<u>When does Plan B become the best deal?</u>

When you plot the different Plans on a graph, the slope intercept of x = 7.5 (rounded up to 8) yields the lowest cost for plan B

5 0
3 years ago
What are 2 equivalent fractions for 4/5?
VashaNatasha [74]
Two equivalent fractions would be 8/10
and 12/15<span />
8 0
3 years ago
PLEASE HELP!!! ILL GIVE BRAINLIEST<br><br><br> what is the function rule is slope
sergey [27]

Answer:

here!

Step-by-step explanation:

How to write a function rule using the concept of slope. Let us do this for example #3. The goal is use the equation y = mx + b. y = 4x + b. Use (1,6) to find b. 6 = 4 + b.

8 0
3 years ago
Help with this question
Vikentia [17]

Answer:

60

Step-by-step explanation:

3 0
3 years ago
The 7 in 72 represents how many times the value of the 7 in 78
Stella [2.4K]

Answer:

1

Step-by-step explanation:

Knowing what place values are, we know that since both of those numbers have the 7 in the tens place, it represents 70.  So both of those number are 70 plus another number (under 10)

5 0
3 years ago
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