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Alexisgrab
25.07.2021 •
Mathematics
Với ngân sách 200k . Giá táo là 20k/1 quả. Giá quýt 100k/1 quả. Thì trục toạ độ điểm A và B sẽ ra sao. Tìm trục toạ độa của A và B
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Ответ:
The missing value x is,
or ![7\frac{1}{2}](/tpl/images/0454/2323/bd3c2.png)
Step-by-step explanation:
The Inverse variation problems can be solved by using the equation, i.e,
use constant variation k to write the above equation as:
Now, use the given information to calculate the value of k;
we need to find the value of k ; when x=9 and y=5
Simplify:
k =45.
Rewrite the equation [1] by substituting the value of k =45,
⇒
......[2]
Substitute the value y=6 in equation[2] to find x:
Therefore, the missing value x is,![\frac{15}{2}=7\frac{1}{2}](/tpl/images/0454/2323/86993.png)