The weight of the Yi ting’s older brother is [tex]\fbox{\bf33.2kg}[/tex].
Further explanation:
Given:
The weight of the Yi ting is 8.3kg and weight of her older brother is 4 times more than her weight.
Calculation:
Consider the weight of the Yi ting as [tex]x[/tex] and weight of Yi ting’s older brother as [tex]y[/tex].
Since, the weight of the Yi ting’s older brother [tex]y[/tex] is 4 times more than the weight of Yi ting [tex]x[/tex], it can be written as follows:
[tex]y=4x[/tex] …… (1)
Now, substitute 8.3 for x in equation (1).
[tex]\begin{aligned}y&=4\left({8.3}\right)\\&=33.2\\\end{aligned}[/tex]
Thus, the weight of the Yi ting’s older brother is [tex]\fbox{\bf33.2kg}[/tex].
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Answer Details :
Grade: Middle School
Subject: Mathematics
Chapter: linear equation
Keywords:
Kilogram, Yi ting, weight, Yi ting’s older brother, y=4x, 8.3 kg, four times, function, substitution, direct substitution, elimination, graph, middle term factorization, scientific notation.
