Answer:
Your first step should be to separate the x's and the numbers.
This is how I would do it:
-3x+2-5x-7=4x+2
-3x-5x-4x=2-2+7
-12x=7
x=-7/12
I believe your answer would be 240
but im not 100% sure
because a triangle equals up to 360 so 120-360= 240
She would need to buy 10 additional bags.
Answer:
1 and 1/30 gallons
Step-by-step explanation:
First, convert all the fractions to a common denominator. I'm choosing 30.
1/3=10/30 1/5=6/30 1/2=15/30
Now, you can add them together to get 31/30, so a little more than a gallon
The angles of a 4 sided shape always add up to 360.
y + x + 190 - y + 70 = 360
x + 190 + 70 = 360
x + 260 = 360
x = 100
