Mathematics: Start with the graph of the absoulute value function. reflect, shrink by a factor of 3/4 shift is 6 unite to the keft and 4 unite down

Start with the graph of the absoulute value function.

makaylahunt

24.03.2023

There are 10 boys and 7 girls in the class.

Step-by-step explanation:

Let x be the number of boys and y be the number of girls then according to the question we have the following equations :-

$x+y=17...............................(1)\\\\7x+11y=147...........................(2)$

The value of y from (1) will be

y=17-x , substitute this in equation (2), we get

$7x+11(17-x)=147\\\\\Rightarrow\ 7x+187x-11x=147\\\\\Rightarrow\ 187-4x=147\\\\\Rightarrow\ -4x=147-187\\\\\Rightarrow\ -4x=-40\\\\\Rightarrow\ x=10$

∴ y=17-10=7

Hence, there are 10 boys and 7 girls in the class.

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