Maurine owns three bagel shops. Each shop sells 500 bagels per day. Maureen asks her store managers to use a random sample to see how many whole wheat bagels are sold at each store each day. Shop A has total of 50 bagels in sample and 10 are whole wheat bagels. Store B has a total of 100 bagels in sample and 23 are whole wheat bagels. Shop C has 25 total bagels in sample and 7 are whole wheat bagels.
We find fraction of whole wheat bagels to the sample for each shop using given information
Shop A = ![\frac{10}{50} = 0.20](https://tex.z-dn.net/?f=%20%5Cfrac%7B10%7D%7B50%7D%20%20%3D%200.20%20)
Shop B = ![\frac{23}{100} = 0.23](https://tex.z-dn.net/?f=%20%5Cfrac%7B23%7D%7B100%7D%20%20%3D%200.23%20)
Shop C = ![\frac{7}{25} = 0.28](https://tex.z-dn.net/?f=%20%5Cfrac%7B7%7D%7B25%7D%20%20%3D%200.28%20)
The number of whole wheat bagels for each shop that sells 500 bagels per day
Shop A = ![0.20 * 500= 100](https://tex.z-dn.net/?f=%200.20%20%2A%20500%3D%20100%20)
Shop B = ![0.23 * 500= 115](https://tex.z-dn.net/?f=%200.23%20%2A%20500%3D%20115%20)
Shop C = ![0.28 * 500= 140](https://tex.z-dn.net/?f=%200.28%20%2A%20500%3D%20140%20)
So she earns $60 per day working, but only saves $50. To solve this equation you have to multiply $50 to each day she works. If the total has to be exactly $2,000 then you must multiply 50 x 36.4 and that equals $2,000.
Your answer should be 36.4 days.
For this case we must rewrite the following expression:
![7 * 7 * 7](https://tex.z-dn.net/?f=7%20%2A%207%20%2A%207)
We have that by definition of multiplication of powers of the same base, we place the same base and add the exponents, example:
![a ^ n * a ^ m = a ^{ n + m}](https://tex.z-dn.net/?f=a%20%5E%20n%20%2A%20a%20%5E%20m%20%3D%20a%20%5E%7B%20n%20%2B%20m%7D)
So:
![7 * 7 * 7 = 7 ^ {1 + 1 + 1} = 7 ^ 3](https://tex.z-dn.net/?f=7%20%2A%207%20%2A%207%20%3D%207%20%5E%20%7B1%20%2B%201%20%2B%201%7D%20%3D%207%20%5E%203)
Thus, the expression is rewritten as
, using exponents.
Answer:
![7 * 7 * 7 = 7 ^ 3](https://tex.z-dn.net/?f=7%20%2A%207%20%2A%207%20%3D%207%20%5E%203)
Answer:
0
Step-by-step explanation:
0 divided by anything is always 0, so you don't have to round.