Okay so if he serves 18 customers in 42 minutes divide 18 by 42 and you get the amount of customers he serves per min which is 0.42857413 then multiply that by 120 since 2 hours add up to 120 minutes and you get 51.43
Nr B:
x = -7 +/- √(-64)
x = -7 +/- 8*√-1
x = -7 +/- 8i
Answer:
18
Step-by-step explanation:
Dimension of piece of wood = 3 ft
Dimension of piece of wood used for one statue =
ft
To find:
Number of statues that can be made from all the wood ?
Solution:
To find the total number of statues that can be carved from the given piece of wood, we need to divide the dimensions of given piece of wood with the piece required to carve one statue.
<em>Formula:</em>
![\dfrac{a}{\frac{b}{c}} = \dfrac{a\times c}{b}](https://tex.z-dn.net/?f=%5Cdfrac%7Ba%7D%7B%5Cfrac%7Bb%7D%7Bc%7D%7D%20%3D%20%5Cdfrac%7Ba%5Ctimes%20c%7D%7Bb%7D)
Number of statues that can be made:
![\dfrac{3}{\frac{1}{6}}\\\Rightarrow \dfrac{3\times 6}{1}\\\Rightarrow \bold{18}](https://tex.z-dn.net/?f=%5Cdfrac%7B3%7D%7B%5Cfrac%7B1%7D%7B6%7D%7D%5C%5C%5CRightarrow%20%5Cdfrac%7B3%5Ctimes%206%7D%7B1%7D%5C%5C%5CRightarrow%20%5Cbold%7B18%7D)
Therefore, <em>18</em> number of statues can be made.
They’re the same.
Give them common denominators by looking at their least common multiples. 6 and 21 are the denominators and they have to be the same to compare. Their least common multiple is 42.
So 1 4/6 will turn into 1 28/42. I know this because their least common multiple is 42. So I multiplied the 6 by 7 to get 42 as the denominator and you must also multiply the numerator by 6.
1 14/21 will need to be multiplied by 2 to get a denominator of 42. It will turn into 1 28/42. Both simplify down to 1 2/3.