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3 years ago

Round 48.073 to the nearest hundredth.

Mathematics

2 answers:

Svet_ta [14]3 years ago

5 0

Answer: 48.07

Step-by-step explanation:

48.073 Rounded to the Nearest Hundredth

To round 48.073 to the nearest hundredth consider the thousandths' value of 48.073, which is 3 and less than 5. Therefore, the hundredths' value of 48.073 remains 7.

tresset_1 [31]3 years ago

3 0

48.07 will be the answer. Find the number in the hundredth place 7
and look one place to the right for the rounding digit 3.

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The full question is attached.

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Here, radius would be 30 since balls have diameter 60 and radius is half of that.

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3 years ago

A plumber charges $130 2 hours of work and $235 for 5 hours of workWhat is the of change in dollars per hour

kogti [31]

Answer:

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Step-by-step explanation:

Figure the rates per hr.

110/3 = 36 2/3

160/5 = 32.

So, the rates are not the same.

Knowing a bit about plumbers, they normally charge a basic fee to just show up, and then they charge per hr.

In cases like these, where we're asked to project to a new data point (in this case an 8-hr job), you should immediately think of a graph. The x-axis would be the hours worked. The y-axis would be the charge for the work (the cost of the job).

We're given two pairs of values:

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The next step is to fit a line to them.

y = mx+b is the general equation for a line.

m = the slope = rise/run = change in y / change in x

Call the change in y, dy (for delta y).

Call the change in x, dx (for delta x).

m = dy/dx = 50/2 = 25

The slope is thus 25, which means for each hour, the price goes up by $25. That means the plumber charges $25/hr.

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That checks.

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y = 235.

That means an 8-hr job costs $235.

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