Answer:
a. 8
b. 61, 23, 84
Step-by-step explanation:
As we can see, point S is between points R and T, therefore:
- RS + ST = RT
- 7y + 5 + 2y + 7 = 14y - 28
- 9y + 12 = 14y - 28
- 14y - 9y = 12 + 28
- 5y = 40
- y = 40/5
- y = 8
------------
- RS = 7y+5 = 61
- ST = 2y + 7= 23
- RT = 14y - 28 = 84
I'm going to set up an equation to find the amount of momey Elisa has, then we can check our answer
e + 2e + 2e + 5 + 2e + 5 · 3 + e + 2e = 69
Simplify:
10e + 30 = 69
Subtract 35 from each side:
10e = 39
Divide by 10 on each side
e = 3.9
We can check our answer by putting the value in the simplified equation.
10 · 3.9 + 30 = 69
Yep! The equation is correct. Now for the answer.
Elisa
3.9
Jacob
7.8
Sandra
12.8
Damian
38.4
Martin
11.7
Hope this helped! If you have anymore questions or don't understand, please comment on my profile or DM me. :)
What kind of help are you looking for exactly
1. Check the picture attached. Consider the half of the 8-sided die, that is the pyramid ABCDE:
2. The perimeter of the base is 6, so each side of the base is 6/4=3/2
3. The distance between the tallest points is 2 cm, si the height of Pyramid ABCDE is 1 cm.
4. Consider the right triangle EOM in the figure:
EO=1, OM= 3/4 (it is half of AB=3/2) and EM is the hypothenuse, so by the pythagorean theorem length of EM is
(cm)
5. So side EBC has area
6. The total area is 8*Area(EBC)=