A - a removes both a’s from equation, then you’re left with b + bsquared, since they are unknown values you cannot combine them, even if it is the same letter, you can only add and subtract unknown values with their same letters together.
Write the folowing in standard form and you well get
#1 is 5b
#2 is b−8x+<span>4</span>
The bank account owner is withdrawing money at the rate of $50/month. The account balance is steadily declining.
In this problem, we are asked to give an expression that can be used to mentally multiply 6 and 198. In order not to go through the rigorous multiplication, we can estimate 198 to 200, that is 6 *200 equal to 1200. Since there is a 2*6 excess or 12 then we subtract: 1200 -12 equal to 1188.
Answer: The entire trip is 62.5 miles
Step-by-step explanation:
25 miles = 0.4x
Divide both sides by 0.4
25/0.4 = 62.5 miles
