Boys : Girls : Total
5 : 7 : 5 + 7
5 . ; 7 . : 12
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Find 1 part :
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12 parts = 36
1 part = 36 ÷ 12
1 part = 3
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Find number of boys (5 parts)
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1 part = 3
5 parts = 3 x 5
5 parts = 15
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Answer: There are 15 boys.
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Answer:
No solutions .........
Step-by-step explanation:
3x-4y=7
-12x+16y=10
Multiply 1st equation by 4, you get:
12x-16y=28
Add the 1st and 3rd equations:
0x+0y=38
0(x+y)=38
(x+y)=38/0 which is undefined
X=2
why the first line starts from left to right on a cartesian plane, the second slants from top to bottom making it perpendicular
Answer:
3.14159265359
Step-by-step explanation:
Most people just use 3.14 for math though
Answer:
l.c.m of 15 and 5 is 15
next step is to equalize the denominator with the l.c.m value
11/15 is the same (same denominator)
3/5 will change to 9/15 (multiply numerator and denominator by 3 to equalize)
Lastly, you just need to subtract
11/15 - 9/15
2/15
