<span>A water tank is 1/8 full. The tank is 3/4 full when 42 gallons are added to the tank. How much water was originally in the tank? (I rewrote it, your wording was messed up)
3/4 = 6/8
1/8 + 6/8 = 7/8 = 42 gallons
42 divided by 8 = 5 1/4
So, the answer is 5 1/4. The tank originally 5.25 gallons of water.</span>
The selling price would be $11.20.
40% = 40/100 = 0.4
The mark up is 40% of the cost; this means 40% of 8:
40% of 8 = 0.4(8) = 3.20
8 + 3.20 = 11.20
Answer:
There is just one simple rules for find other side
Step-by-step explanation:
Think about a triangle and this triangle has 3 side it must have 90° on one edge. We assume the longest side is hipotenus x²+y²=hipotenus² . Look at your question hipotenus is 15 lets try to find other side. X²+12²=15² x=9
A trapezoid has two parallel sides, but the top one is shorter than the bottom one
Answer:
13. 
14. 
15. 
16. 
17. 
Step-by-step explanation:
Let "a", "b", and "c" real numbers.
- Commutative Property of Addition states that:
- Associative Property of Addition states that:
- Additive Identity Property states that:
- Commutative Property of Multiplication states that:
- Multiplicative Inverse Property states that:
(
)
Knowing these properties, we can solve the exercise:
13. By the Commutative Property of Addition:
14. By the Associative Property of Addition:
15. By the Additive Identity Property:
16. By the Multiplicative Inverse Property:
17. By the Commutative Property of Multiplication:
