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ofkameron50
06.05.2020 •
Mathematics
Jazlyn recorded the growth of a
plant over 16 weeks. The equation
y = 0.28x + 7 represent the
height (y) in inches over the time
(x) in weeks. How tall would the
plant be after 4 weeks?
8.SP.3
7.284 inches
7.56 inches
8.12 inches
12.34 inches
Solved
Show answers
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Ответ:
x=-129
y=-9
Step-by-step explanation:
2x=-78-20y
-x=-51-20y
2x-x=-78-51
x=-129
-(-129)=-51-20y
129+51=-20y
180=-20y
y=180:(-20)=-9