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likoan [24]
3 years ago
13

Systems of equations are bundles of equations that all relate to a common problem. For instance, combine two equations that each

give the distance (y) that two different cars drive in a given amount of Systems of equations are bundles of equations that all relate to a common problem. For instance, combine two equations that each give the distance (y) that two different cars drive in a given amount of time(x) to form a system of equations:
y = 60x + 5
y = 40x + 40

One value of x will yield the same value of y in each equation. What does this solution represent in this situation? Can you think of any other scenarios where two linked equations could provide a useful answer? How do systems of equations make problems easier to comprehend?
time(x) to form a system of equations:

Mathematics
2 answers:
never [62]3 years ago
8 0

Answer:

Solution will represent the time at which the distance traveled by both the cars will be the same.

Step-by-step explanation:

we are given with a system of equation . the equations are

y=60x+5

y=40x+40

where y is the distance traveled and x is the time. the solution to the above system of equations represents the time after which they have traveled the same distance .

Another situation could be the total cost of manufacturing of some product.

suppose the cost of the production of pencils in two difference units be given as

C=4n+50

C=5n+35

Where C is the total cost incurred in production of n number of pencils.

The solution to the above system of equation will be representing the number of units for which the cost of production of both the units will be the same.

Sergio [31]3 years ago
3 0
The two equations represent the different speeds (60 and 40) that two cars are traveling and the distances where they began (5 and 40).  The solution represents the time(x) when they have traveled the same distance.  Graphically it is the point where they intersect.  
Other scenarios would be any time you are comparing two things like cost to drive two different cars or internet services.  
Systems of equations help us see each situation, in this problem the time and distance a car travels then relate it to another car's distance traveled at the same times. 

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KatRina [158]

Answer:  0.1

Step-by-step explanation:

Given :  A Houston department store sampled 80 items sold in January and found that 8 of the items were returned.

In other words, sample size : <em>n</em>=1040

Number of items returned : <em>x</em>= 8

Let <em>p</em> be the proportion of items returned for the population of sales transactions at the Houston store.

As per sample , the sample proportion of items returned for the population of sales transactions at the Houston store is :

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As we know that , <em>the sample proportion is the best estimate of the population proportion.</em>

Therefore,a point estimate of the proportion of items returned for the population of sales transactions at the Houston store is 0.1.

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