A certain high school has 1,488 students. If you subtract the number of girls from boys you get 78. Let x be the number of boys
and y be the number of girls.
1 answer:
Answer:
boys = 705
girls = 783
Step-by-step explanation:
We are to find the number of boys and girls in the school
the answer can be determined using simultaneous equation
x = boys
y = girls
y - x = 78 equation 1
y + x = 1488 equation 2
subtract equation 1 from 2
2x = 1410
x = 1410/2 = 705
Substitute for x in equation 1
y - 705 = 78
y = 705 + 78 = 783
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I think it's a3D unless u tell me what u mean by finding S12
A. both the equations are identities , i’m pretty sure
5 would be the digit in the tenths place
