Let x be the number.
"twelve decreased by twice a number" ---> 12 - 2x
"8 times the sum of number and 4" ---> 8(x + 4)
12 - 2x = 8(x + 4)
12 - 2x = 8x + 32 (distributive property)
12 = 10x + 32 (add 2x to both sides)
-20 = 10x (subtract 32 from both sides)
x = -2 (divide both sides by 10)
Answer:
Step-by-step explanation:
First place 3 as a mixed number = 3/1 then simply divide you get 7/18
In total there will be 688 milliliters of compound used 258 from compound B and 430 milliliters of compound A so 688 in total.
Answer:x>-1
Step-by-step explanation: