Question
3y = 15
-3x – 5y = -10
- 4, 4
- 1, 1
- 2, 2
- -5, 5
Hint:
Since, there is no other variable present in 3y = 15 except y, find the value of y and substitute it in the other equation and find x.
The correct answer is: -5, 5
Here, we have 2 equations
3y = 15 (1)
-3x -5y = -10 (2)
From equation (1), we get:
3y =15
y = 15
3 = 5
Substitute the value of y in equation (2), we get:
-3x - 5(5) = -10
-3x - 25 = -10
-3x = 15
x = -5
Thus , (x,y) = (-5,5)
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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.
