Answer:
121.5
Step-by-step explanation:
40.5*3=121.5
Answer:
No they don't (unless I messed up)
Step-by-step explanation:
([{3x=9} 2]=<u>81</u>) - ([{x=3}+1]=<u>4</u>) =<u><em>77</em></u>
([{2x=10} 2]=<u>100</u>) + {[(2x=25)-4]=21} = <u><em>79</em></u>
This question belongs to simple algebric equation, where we need to add or subtract fractions by finding a common denominator.
Given total hours = 120
Number of hours tutored for 1st week =2 1/3 hours = 7/3 hours
Number of hours in the 2nd week = 3/2 = 1.5 hours
Let the number of more hours she needs to teach be x
![\frac{7}{3} + \frac{3}{2} + x = 20](https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B3%7D%20%2B%20%5Cfrac%7B3%7D%7B2%7D%20%2B%20x%20%3D%2020)
= ![\frac{14+9+6x}{6}= 20}](https://tex.z-dn.net/?f=%5Cfrac%7B14%2B9%2B6x%7D%7B6%7D%3D%2020%7D)
23 + 6x = 120
6x = 97
x = 16.167
Hence Kiara needs 16.167 more hours.
And this belongs to a part-whole problem, because the time she still needs to tutor is unknown.
Answer:
Prisms have two congruent -- or identical -- bases, and pyramids only have one base. The shape of the base on pyramids and prisms can vary, depending on the shape of the overall three-dimensional object. For example, the base could have a square, rectangle, triangle, hexagon, pentagon or octagon shape.
Step-by-step explanation: