A fraction is a short way to write a division problem. When you see a fraction, it means "the top number divided by the bottom number".
When you actually DO the division, the answer is the decimal that's equal to the fraction.
Hi there!
Begin by solving for the area of the base:
A = 1/2 (bh)
Thus:
A = 1/2(2 · 1.5) = 1.5 in²
Multiply by the depth to find the volume:
A = 1.5 × 7 = 10.5 in³
Answer:
Expand the following expression
(3x+1)(x-4) = 3x^2-12x+x-4
middle term = -11x
-5x-6.5>12
Add 6.5 to both sides...
-5x>18.5
Divide both sides by -5 and flip the sign...
x<-3.7
Part A: 0.10x + 0.25 = 0.80 (dimes are 10 cents or 0.10 dollars, quarters are 0.25 dollars)
Part B: Plug in what you DO know and solve the one you DON’T:
0.10x + 0.25(2) = 0.80
0.10x + 0.50 = 0.80. Subtract 0.50 from both sides:
0.10x = 0.30 (Divide both sides by 0.10)
x = 3
Therefore you have 3 dimes
