Answer: he would need either 6 cups whose volume is 1/2 litres per cuo or
he would need 12 cups whose volume is 1/4 litres per cup
Step-by-step explanation:
Total amount of water required to fill the jug is 3 litres. He has measuring cups of 1/2 and 1/4 litres only.
If he decides to fill the jug with only the 1/2 litres cup, the number of 1/2 litres cups that he would need is
3/(1/2) = 3/0.5 = 6
If he decides to fill the jug with only the 1/4 litres cup, the number of 1/4 litres cups that he would need is
3/(1/4) = 3/0.25 = 12
Answer:
x = 3/8
Step-by-step explanation:
The difference of the two squares can be found several ways. One way uses the "difference of squares" special form.
a² -b² = (a -b)(a +b)
For the given squares, this is ...
(2x +3)² -(2x -3)² = ((2x +3)-(2x -3))((2x +3) +(2x -3)) = 6(4x) = 24x
We want to find x that makes this difference be 9:
24x = 9
x = 9/24 = 3/8
For the value x = 3/8, the difference between the squares of the binomials will be 9.
12 divided by 2, 24 divided by 4, 54 divided by 9, and 36 divided by 6.
Answer:
x=21
Step-by-step explanation:
180-126=54
54-12=42
42/2=21
x=21