The number of patients treated at Dr. McCormick’s dentist office each day was recorded for nine days. These are the data: 13, 16
1 answer:
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Let's break it down into something more simple:
What's 10 times 10? 100
What's 10 times 10 times 10? 1000
Do you see a pattern? (Cool trick - The number of 10s match the number of 0s in the answer)
We have seven 0s in our answer, so let's check:
10 x 10 x 10 x 10 x 10 x 10 x 10 = 10,000,000
An exponent tells us that we're multiplying the big number by itself however many times the little number in the corner tells us.
So if we multiply 10 by itself 7 times (what we did above), then our answer will be 10 to the power of 7, or . This is equal to 10,000,000.
Let's start by assuming Armando's house is between Joey's and the park.
Let
be the distance Joey walked to Armando's house.
<span>The park is 9/10 mile from Joey's home. Joey leaves home and walks to Armando's home. Then Joey and Armando walk 3/5 mile to the park.
</span>
That's probably the answer they're looking for. But what if the park is between Joey and Armando's houses or Joey is between the park and Armando? (The latter isn't really possible with the given distances.)
Let
be the distances between three collinear points like we have here. Our equation is really a few equations in one, something like
Let's get rid of the plus/minuses. Squaring,
For us, that's a quadratic equation for
I'll skip right to the solutions,
We could have gotten the 3/2 just by adding 9/10+3/5 but this was more fun.
Let
<span>The park is 9/10 mile from Joey's home. Joey leaves home and walks to Armando's home. Then Joey and Armando walk 3/5 mile to the park.
</span>
That's probably the answer they're looking for. But what if the park is between Joey and Armando's houses or Joey is between the park and Armando? (The latter isn't really possible with the given distances.)
Let
Let's get rid of the plus/minuses. Squaring,
For us, that's a quadratic equation for
I'll skip right to the solutions,
We could have gotten the 3/2 just by adding 9/10+3/5 but this was more fun.