Answer:
Step-by-step explanation:
4x - 12 = 11 - 3x
Bringing like terms on one side
4x + 3x = 11 + 12
7x = 23
x = 23/7
Answer:
£631.07
Step-by-step explanation:
Increasing a value by 3% is the same as taking 103% of it - you have the original price (100%) plus an additional 3% of it. Let's call the original price here p. We're told that after a 3% increase, the price goes up to £650. Put another way: 103% of p is £650. In equation form:

To solve for p, we can simply divide both sides of our equation by 1.03 to get

So our orignal amount, to the nearest penny, was £631.07
= - 4.2x + 3 + 2.5x - 6
= 2.5x - 4.2x + 3 - 6
= - 1.7x - 3
Her best choice would be to take a fixed rate mortgage because it would let her know exactly how much she would pay each month.
Factor f(t) and you can identify the values of t for which the height is zero.
.. f(t) = -16t(t -3)
The projectile lands after 3 seconds in the air. (selection A)