OGxSniperGodx
24.08.2020 •
Mathematics
1. There are 270 students at Colfax Middle School, where the ratio of boys to girls is 5:4. There are 180 students at Winthrop Middle School, where the ratio of boys to girls is 4:5. The two schools hold a dance and all students from both schools attend. (14 points) Colfax Middle: What is the total number of parts in the ratio of 5:4? If there are 270 students, what is the value of each part? If the ratio of boys to girls is 5:4, then how many students are boys? If the ratio of boys to girls is 5:4, then how many students are girls? Colfax Middle School ratio of boys to girls : Winthrop Middle: What is the total number of parts in the ratio 4:5? If there are 180 students, what is the value of each part? If the ratio of boys to girls is 4:5, then how many students are boys? If the ratio of boys to girls is 4:5, then how many students are girls? Winthrop Middle School ratio of boys to girls : Ratio of total boys to girls at dance :
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Ответ:
there is two many words make it shorter and i will answer
Step-by-step explanation:
Ответ:
C . . . (18, -8)
The slope of the line AC is (-8 + 2) / (18 + 4) = -6 / 22 = -3/11 .
The slope of any line perpendicular to AC is 11/3 .
The midpoint of the line segment AC is [ 1/2(-4+18), 1/2(-2-8) ]
= (7, -5) .
Now you have the slope and one point on the
perpendicular bisector of AC .
Slope = 11/3
Point = (7, -5)