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suselygonza
28.07.2020 •
Mathematics
Find x and y, please solve with steps and leave answers in fraction form, THANK YOU
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Ответ:
Below
Step-by-step explanation:
Using the proprtionality relation:
● 8/10 =5/x
● (4*2)/(5*2) = 5/x
Simplify using 2
● 4/5 = 5/x
Multiply both sides by 5
● (4/5)*5 = (5/x)*5
● 4 = 25/x
Switch x and 4
● x= 25/4
■■■■■■■■■■■■■■■■■■■■■■■■■
Again use the proportionality relation but this time with y.
● 8/10 =7/y
8/10 = 4/5
● 4/5 = 7/y
Multiply both sides by 5
● (4/5)*5 =(7/y)*5
● 4 = 35/y
Switch 4 and y
● y = 35/4
Ответ:
A
Step-by-step explanation:
Calculate the slope m using the slope formula
m =
with (x₁, y₁ ) = (0, 6) and (x₂, y₂ ) = (1, 9) ← 2 ordered pairs
m = = 3
Note (0, 6) is the point where the line crosses the y- axis, thus
y- intercept = 6
slope of line is 3 and y- intercept is 6 → A