Answer:
w = -8
Step-by-step explanation:
step 1:(20 - 9w) - 4 • (15 - w) = 0
step 2: -5w - 40 = -5 • (w + 8)
step 3: -5 • (w + 8) = 0
step 4: Subtract 8 from both sides of the equation :
w = -8
Answer:
the answer is D
Step-by-step explanation:
this is because the number is unknown so you have to put a variable
For this case we can make the following rule of three:
38 milimeters ---------> 6 meters
57 milimeters ---------> x
Clearing x we have:
x = (57/38) * (6)
x = 9 meters
Answer:
the current length of the living room is:
x = 9 meters
Answer: -4/5, in decimal form -0.8
Step-by-step explanation: −4.1+2n+1+0.3n
Combine Like Terms:
=−4.1+2n+1+0.3n
=(2n+0.3n)+(−4.1+1)
=2.3n+−3.1
=2.3n−3.1