Each week Peggy drives two routes, route X and route Y. One week she drives route X three times and route Y twice. she drives a
total of 144 miles that week. Another week she drives route X twice and route Y five times. she drives a total of 217 miles that week. Find the length of each route
1 answer:
Ok, great to have you! I will finally answer your question.
This seems to be a system of equations. I solve most of mine on Desmos.
Let us write two equations to model this:
We get the graph. Note the intersection at (26,33).
That means that route X is 26 miles long,and route Y is 33 miles long!.
Hope this helps.
This seems to be a system of equations. I solve most of mine on Desmos.
Let us write two equations to model this:
We get the graph. Note the intersection at (26,33).
That means that route X is 26 miles long,and route Y is 33 miles long!.
Hope this helps.
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domain is the numbes you are allowed to use for x
what I usually do is just find the numbers that aren't allowed in the domain. such numbers are numbers that cause a division by 0 or a squaer root of a negative number
given , there are no numbers that you can use for x that will cause a division by 0 or a square root of a negative number
so domain is all real numbers or D={x | -∞<x<∞}