Note the equal sign. What you do to one side, you do to the other. Isolate the x.
Subtract 4 from both sides
x + 4 (-4) = 11 (-4)
x = 11 - 4
x = 7
7 is your answer for x.
hope this helps
You would take the base and multiply it by the height. So you would take 10x4 and that would give you 40
Answer: first one
Step-by-step explanation:
The word "commutative" comes from "commute" or "move around", so the Commutative Property is the one that refers to moving stuff around. For addition, the rule is "a + b = b + a"; in numbers, this means 2 + 3 = 3 + 2. For multiplication, the rule is "ab = ba"; in numbers, this means 2×3 = 3×2.
Answer: Each ticket costs $32
=========================================================
Explanation:
Let x be the cost of one ticket. If four people buy a ticket each, then they collectively spend a total of 4x dollars for those tickets. Add on 4*3 = 12 dollars from the fact that they bought the ice cream, and we arrive at the expression 4x+12. This is the total amount spent in dollars for the tickets and ice cream combined.
Set this expression equal to 140 and solve for x
4x+12 = 140
4x = 140-12
4x = 128
x = 128/4
x = 32
This says that each ticket costs $32
If one ticket costs $32, then four of them cost a total of 4*32 = 128 dollars. Add on the $12 spent on the ice cream to get 128+12 = 140, which helps verify we have the correct ticket price.
Another way to verify is to replace x with 32 in the original equation we set up, then simplify like so
4x+12 = 140
4*32+12 = 140
128+12 = 140
140 = 140
This is very similar to the previous verification technique used earlier.
The answer is g = 2a / h - f
Hope this helps! ☺♥