Set it up as a ratio:
16 ounces feeds 80, 12 ounces feeds X
16 / 80 = 12 / X
Cross multiply:
16X = 80*12
16X = 960
Divide both sides by 16:
X = 960 / 16
X = 60
12 ounce feeder will feed 60 hummingbirds.
A, The answer is provided: R=35x
b. R=C when you break even (i.e. your cost equal your revenue)
35x=15x+2000; 20x=2000; x=2000/20; x = 100 rides
One nice thing about this situation is that you’ve been given everything in the same base. To review a little on the laws of exponents, when you have two exponents with the same base being:
– Multiplied: Add their exponents
– Divided: Subtract their exponents
We can see that in both the numerator and denominator we have exponents *multiplied* together, and the product in the numerator is being *divided* by the product in the detonator, so that translates to *summing the exponents on the top and bottom and then finding their difference*. Let’s throw away the twos for a moment and just focus on the exponents. We have
[11/2 + (-7) + (-5)] - [3 + 1/2 + (-10)]
For convenience’s sake, I’m going to turn 11/2 into the mixed number 5 1/2. Summing the terms in the first brackets gives us
5 1/2 + (-7) + (-5) = - 1 1/2 + (-5) = -6 1/2
And summing the terms in the second:
3 + 1/2 + (-10) = 3 1/2 + (-10) = -6 1/2
Putting those both into our first question gives us -6 1/2 - (-6 1/2), which is 0, since any number minus itself gives us 0.
Now we can bring the 2 back into the mix. The 0 we found is the exponent the 2 is being raised to, so our answer is
2^0, which is just 1.
Answer:
6 cm² + 6 cm²
12 cm²
surface area of the cuboid=12cm²-2 cm²
=10 cm²
9514 1404 393
Answer:
(b) 3h^-8·k^10
Step-by-step explanation:
The applicable rule of exponents is ...
(a^b)/(a^c) = a^(b-c)
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