Answer:
Nina's rate is 12.7059 miles per hour (answer rounded up to four decimal places).
Step-by-step explanation:
Nina can ride her bike 63,360 feet in 3400 sec
1 mile = 5,280 feet
How many miles = 63,360 feet ?
Its 63,360 feet ÷ 5,280 feet × 1 mile = 12 miles
Nina's rate is 12 miles per 3400 seconds
1 hour = 3600 seconds
So in 1 hour, Nina rides × 12 miles = 12.7059 miles (rounded up to four decimal places)
Nina's rate is 12.7059 miles per hour (answer rounded up to four decimal places).
Answer:
An equation represents the number of pieces of lasagna that are left after dinner is
Step-by-step explanation:
Each piece of Lasagna is 1/6 of the pan
Let x be the number of pieces left
So, x pieces is of the pan
We are given that After dinner 2/3 of a pan of lasagna is left.
So,
x=4
So, Number of pieces left = 4
Hence An equation represents the number of pieces of lasagna that are left after dinner is
Answer:
The answer is
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Step-by-step explanation:
<h3>
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To rationalize the denominator multiply both the numerator and the denominator by
4√3 - 3√2
That's
<h3>
</h3>
So we have
<h3>
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We have the final answer as
<h3>
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Hope this helps you
Answer:
Step-by-step explanation:
The direct proportion equation is y = kx which reads, "y is directly proportional to x". k is the constant of proportionality. In our case, we read this is as, "the number of calories is directly proportional to the number of apples eaten." Our equation would look like c = ka. We first are given that a = 4 and = 380. We will use that to solve for k:
380 = k4 so
k = 95. Now that know the value of k, we will use that along with the number of calories (1045) to find the number of apples, a:
1045 = 95a so
a = 11
This means that it will be 11 apples that contain 1045 calories.