jrfranckowiak
12.05.2021 •
Mathematics
The ratio of boys to girls is 2 to 3. If there are 90 students in the band, how many of them are boys?
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Ответ:
36
Step-by-step explanation:
We can make an algebric equation.
2x+3x=90
5x=90
x=18
Since we wanna find the boys, we multiply the boys ratio with our x value.
2x=2•18=36 boys
Ответ:
1/5
Step-by-step explanation:
(-4, -3) (1, -2) (6, -1) (11, 0)
Rise/Run
y2-y1/x2-x1
(0-(-1))/(11-6) = 1/5
The same formula can be used with any points. Meaning, the point will rise one and "run" to the right five units.