Answer:
and 
Step-by-step explanation:
Given
per section
Required
Model the scenario
The model of this scenario is:
This gives:
<em />
<em> -- This represents the multiplication model</em>
Divide both sides by 18
Reorder
<em /><em> -- This represents the division model</em>
Answer:
3/10
Step-by-step explanation:
11/20=.55 =55% ; 1/400=.0025=.25% ; 5/8=.625=62.5%
Answer:
2.3
Step-by-step explanation:
138 divided by 60=2.3
divide the amount consumed by the total number of households involved
Let x = the amount of time that the third person needs to work on the job to add up to one
1 = 1/2 + 1/3 + x
1 - 1/2 - 1/3 = x
To subtract the fractions we need to put them all over a common denominator. Let's use 3*2 = 6 as the denominator; so 1 = 6/6, 1/2 = 3/6, 1/3 = 2/6:
6/6 - 3/6 - 2/6 = x
1/6 = x
The third person must work 1/6 time on the project.
