Miley earns $10 per hour babysitting. Is the amount of money earned proportional to the number of hours she spends babysitting?

1 answer:

5 0

The amount of money she earns is proportional to the number of hours she babysits. For every 1 hour she babysits, she earns $10. If she babysits 2 hours, the pay is $20. It is a $10 to 1 hour rate(ratio).

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MariettaO [177]

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2 years ago

Use cramer's rule to determine if the system is inconsistent system or contains dependent equations. 2x + 7 = 8 6x + 3y = 24 que

Natali [406]

Answer: In the equations that you have given, we have a dependent system.

2x + y = 8 (I assumed that you meant to type y instead of 7)
6x + 3y = 24

To use Cramer's Rule, we have to take the determinant of 3 different matrices written in the problem. Taking the determinant of the coefficient matrix produces a zero.

2 1 This is the coefficient matrix.
6 3

6 - 6 = 0

Since this is 0, the rest of the work will be undefined meaning the systems are dependent (or they are the versions of the same equation).

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3 years ago

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If a car has traveled 171 miles in 3 hours at a steady pace, how far has it traveled each hour?

san4es73 [151]

Answer:

B: 57 mph=57 mph

Step-by-step explanation:

A steady pace means constant speed that it does not change over a period of time and direction of motion. A simple formula, for this case (constant speed)

$v= \frac{x - xo}{t -to}$