3/10 of the households did not use a computer.
Hope this helps.
Ratio of classes A, B, C = 4 : 6 : 5, respectively
4 + 6 + 5 = 15
So, class A represents 4/15 of the TOTAL population
Class B represents 6/15 of the TOTAL population
Class C represents 5/15 of the TOTAL population
So, weighted average of 3 groups combined = (4/15)(65) + (6/15)(80) + (5/15)(77)
= 260/15 + 480/15 + 385/15
= 1125/15
= 75
Answer: B
Answer:
A. x = 8.
B. x = 31.
C. x = 32.
Step-by-step explanation:
Here. the sum of the 2 parallel sides of the trapezoid = 2 * length of the middle line segment.
MN + RS = 2PQ
32+ x = 2*20
x = 40 - 32
x = 8.
MN + RS = 2PQ
20 + 42 = 2PQ
2x = 62
x = 31
MN + RS = 2PQ
22 + 42 = 2PQ
2x = 64
x = 32.
<span>Comparing decimal 1.9 0.95
</span>
<span>1.9 is greater than 0.95</span>
Answer:
25 liters of petrol
Step-by-step explanation:
78 km = 6 liters
So the ratio is 78:6
Let's find the distance per liter:
78/6 = 13
So you travel 13 km per liter
To find the amount of liters for 325 km, you divide 325 by 13:
325/13 = 25
You would need 25 liters of petrol to travel 325 km.
-Chetan K