(350 + 700) / 2 = 1050/2 = 525...the average of both tanks is 525 gallons
Answer:
The right options are A and D.
Step-by-step explanation:
1. Option A.
The action is:Add 3 to both sides. This means that we need to do the following operation:
x - 3 = 12
∴ x - 3 + 3 = 12 + 3
∴ x = 15
So, the solution of this problem is x = 15.
2. Option D.
The property is:Addition property of equality. This is the property we are chosen because we need to isolate the variable x. To do that, we need to add a number of each side of the equation to find our goal and this property allows us to get our goal.
Answer:
x = -13/5
Step-by-step explanation:
let x be the number
8x + 6 = 3x - 7
move variables to left and numbers to right
8x - 3x = - 7 -6
5x = -13
x = -13/5
Answer:
-8a - 7b - 7c
Step-by-step explanation:
-8a - 2b - 10c - (5b - 3c)
Negate 5b and -3c
-8a - 2b - 10c - 5b + 3c = -8a - 7b - 7c
A combination in this question, is combining 2 activities out of the 3.
The possible combinations are:
- Parade and Roller Coaster.
- Parade and Eat Ice Cream Cones.
- Roller Coaster and Eat Ice Cream Cones.
If you need the opposite order:
- Roller Coaster and Roller Coaster.
- Roller Coaster and Eat Ice Cream Cones.
- Eat Ice Cream Cones and Roller Coaster.
Hope This Helped! Good Luck!
