Answer:
12
Explanation:
Number routes from London to Oxford = 4
The number of ways the motorist could take the route = 4C1 = 4
Where C is Combination
Number routes from from Oxford to Gloucester = 3
The number of ways the motorist could take the route = 3C1 = 3
Number of routes from London to Gloucester via oxford = 4C1 × 3C1 = 4×3
Number of routes motorist knows from London to Gloucester via oxford = 12
The total number of different routes that could be taken from London to Gloucester via Oxford can be obtained using the multiplication operation, Hence, the number of different routes are 12.
Given the Parameters :
Number of routes from London - > Oxford = 4 Number of routes from Oxford - > Gloucester = 3The number of routes from London - > Gloucester can be calculated thus :
Starting point = London Destination = Gloucester(Number of routes from London - > Oxford) × Number of routes from Oxford - > Gloucester)
Number of routes from London - > Gloucester = (4 × 3) = 12
Therefore, are 12 different routes between London to Gloucester via Oxford.
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The table shows the money Frank has saved for college
so far.
Frank needs to save $1,800 in all for college. How
much more money does he need to save?
Month
Money Saved
$
January
$100
February
$80
March
$50
Answer:
$1570
Explanation:
The amount of money he need to save is $1570.
Given data
In January, he saved $100
In February, he saved $80
In March, he saved $50
Target saving = $1,800
The amount need to save = $1,800 - ($100 + $80 + $50)
The amount need to save = $1,800 - $230
The amount need to save = $1570
In conclusion, the amount of money he need to save is $1570.
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Which of the following is an acceptable source of potable water?
Boiler water
.
Private well water
.
Mop water
Untreated water
Answer:
An acceptable source of potable water is private well water.
Explanation:
A water well is usually a dug or drilled hole in the ground to be able to use groundwater. In addition, there are wells that aim to collect rainwater (rain well). They primarily serve to provide drinking water.
If the groundwater is just below the earth's surface, which is usually the case in humid environments, the groundwater level is easily reached by fairly simple digging. The excavated pit is usually also enclosed by bricks, so that the excavated hole can remain narrow over the entire length of the pit and also does not collapse if the soil itself becomes more humid and therefore less solid.
A water well is a hole that is dug or drilled for using the groundwater and the aim of the well is to collect rainwater.
It mainly serves the purpose of drinking water. As groundwater is under the surface of the earth. In a humid environment, the water can be easily reached by this method. An excavation put is also dug for the same reason.Hence the option B is correct. That is private well water.
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