Question
-2x – 5y = 10
-x – y = -1
- 5, 4
- -5, 4
- 5, -4
- -4, -5
Hint:
- The Linear Combination Method , aka The Addition Method , aka The Elimination Method. Add (or subtract) a multiple of one equation to (or from) the other equation, in such a way that either the x -terms or the y -terms cancel out. Then solve for x (or y , whichever's left) and substitute back to get the other coordinate.
The correct answer is: 5, -4
Related Questions to study
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According to the row relative frequency table, find the percent of girls polled who prefer cats as their pet.
Percent is referred as per hundred which means the ratio of given number and 100. Percent can be calculated by using the formula 
.
According to the row relative frequency table, find the percent of girls polled who prefer cats as their pet.
Percent is referred as per hundred which means the ratio of given number and 100. Percent can be calculated by using the formula .
A survey explored the relationship between gender and band class. Identify a reasonable conclusion among the following.
Conclusion of the data given in the table can be derived from the information provided in the table.
A survey explored the relationship between gender and band class. Identify a reasonable conclusion among the following.
Conclusion of the data given in the table can be derived from the information provided in the table.
According to the two-way table, a person who does not play an instrument is most likely
According to the two-way table, a person who does not play an instrument is most likely
According to the column relative frequency table, find the relative frequency of girls that have red hair.
Relative frequency represents the number of times an event has occurred. It can be determined using the formula 
.
According to the column relative frequency table, find the relative frequency of girls that have red hair.
Relative frequency represents the number of times an event has occurred. It can be determined using the formula .
According to the table, find the relative frequency of students ages 14 - 17 who eat breakfast.
Relative frequency represents the number of times an event has occurred. It can be determined using the formula .
According to the table, find the relative frequency of students ages 14 - 17 who eat breakfast.
Relative frequency represents the number of times an event has occurred. It can be determined using the formula .
