X - Ernie, y - Kaylin, z - Tria
x = y + 121.50
z = 3y - 35
x + y + z = 579
-------------------------
z = 3 y - 35 => - 3 y + z = -35
y + 121.50 + y + z = 579
---------------------------------
- 3 y + z = - 35 / · ( -1 )
2 y + z = 457.50 (we will use the elimination method)
---------------------------------
3 y - z = 35
2 y + z = 457.50
----------------------
5 y = 492.5, y = 492.5 : 5 = 98.5
z = 3 · 98.5 - 35
z = 260.5
Tria earned $260.5
Answer:
s + 3w = 64
Step-by-step explanation:
s represents the amount of strawberry juice
w represents the amount of water
then,
s + 3w = 64
Given:
Kristen owns 61 shares of Prince Waste Collection
Kristen owns 45 shares of Nar Heating/Cooling
Number of Shares Value per share Total
Prince Waste
Collection 61 16.59 1,011.99
Nar Heating/
Cooling 45 7.88 354.60
Total 106 1,366.59
If Kristen sells all of her stocks, she will receive a total of $1,366.59
Answer:
84%
Step-by-step explanation:
The probability of Thomas bumping into her at school is 80%, so the probability of not bumping into her is 100% - 80% = 20%.
If he doesn't bump into her (20% chance), he will call her, and the probability of asking her in this case is 60%, so the final probability of asking her in this case is:

If he bumps into her (80% chance), the probability of asking her is 90%, so the final probability of asking her in this case is:

To find the probability of Thomas inviting Madeline to the party, we just have to sum the probabilities we found above:

