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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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The cost of a car rental is ​$25 per day plus 22 per mile. You are on a daily budget of ​$90. Write and solve an inequality to f
lara31 [8.8K]

Answer: You can drive, at most, 2.95 miles per day.

x ≤ 2.95

Step-by-step explanation:

In a single day, you can spend at most $90

Then if C represents the cost of renting the car, then we will have the inequality:

C ≤ $90

Now let's find the equation for C.

We know that we have a fixed cost of $25 plus $22 per mile, then if you drive x miles, the total cost will be $25 plus x times $22, or:

C = $25 + x*$22.

We can now replace that in the inequality:

$25 + x*$22 ≤ $90

Now let's isolate the variable x

x*$22 ≤ $90 - $25

x*$22 ≤ $65

x ≤ $65/$22 = 2.95

x ≤ 2.95

You can drive at most, 2.95 miles per day.

To find other inequalities with the same solution we can start with the solution:

x ≤ 2.95

Now let's multiply both sides by a number (the units of the number can be dollars, in that way we can make a similar problem)

Let's multiply both sides by $10:

x*$10 ≤ 2.95*$10 = $29.5

x*$10 ≤ $29.5

Now let's add the same number in both sides, for example, $5.

x*$10 + $5 ≤ $29.5 + $5 = $34.5

x*$10 + $5 ≤ $34.5

We could write this problem as:

"To rent a cab in your city, you have an initial cost of $5, plus $10 for each mile driven. How many miles could you drive if at most you can spend $34.50?"

You could be more creative with the problem, but this is the way in which you can craft problems of this type when you already know the solution.

5 0
3 years ago
(B^2)(B^4)<br> Answer choices<br> B^8<br> B^6<br> B^2<br> 2b^6
ruslelena [56]

Answer:

Step-by-step explanation:

(B^2)(B^4) = B^(2+4)= B^6

answer is B

6 0
3 years ago
fifteen children voted for their favorite color. the votes for red and blue together were double the votes for green and red. Ho
stira [4]
Five voted for green or yellow and 10 voted for red or blue
4 0
3 years ago
  Why only one of the intercepts is enough to determine a line function when the slope is constant?
dybincka [34]

Answer:

Step-by-step explanation:

none of above

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5 0
3 years ago
Write the first 4 terms of the arithmetic sequence With first term 37 and common difference 9
alexandr402 [8]

Answers:

first term = 37

second term = 46

third term = 55

fourth term = 64

==========================================

Explanation:

Start at 37. Add 9 to this term to get the second term. Add 9 to that result to get the next term, and so on.

first term = 37

second term = 37+9 = 46

third term = 46+9 = 55

fourth term = 55+9 = 64

-----------

The nth term formula is

a(n) = 9n+28

It can be found by plugging a = 37 and d = 9 into the general form

a(n) = a + d*(n-1)

4 0
3 years ago
Read 2 more answers
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