Jenna is not correct. To find the actual answer, you need to find 2(4 3/7). You can estimate this product by rounding 4 3/7 to 4 1/2. 2(4 1/2) = 9, which is much greater than Jenna’s answer. Even if you rounded 4 3/7 down to 4, 2 times 4 is 8, which is still greater than Jenna’s answer, and would be less than the actual answer.
Jenna is incorrect.
"It is used to represent the part of the whole thing."
For non-zero integers a, b, c
[tex]a+\frac{b}{c}=\frac{(a\times c)+b}{c}[/tex]
For given question,
Jenna bought bought [tex]4\frac{3}{7}[/tex] pounds of apples.
Kamilah bought twice as many pounds of apples as Jenna.
[tex]\Rightarrow 2\times 4\frac{3}{7}\\[/tex]
First we can rewrite the fraction [tex]4\frac{3}{7}[/tex] as,
[tex]4\frac{3}{7}=4+\frac{3}{7}[/tex]
[tex]\Rightarrow 2\times 4\frac{3}{7}\\\\=2\times 4+\frac{3}{7}\\\\ =8+\frac{b}{7}[/tex] ...................(i)
Jenna calculates that Kamilah bought [tex]6\frac{3}{7}[/tex] pounds.
[tex]6\frac{3}{7} =6+\frac{3}{7}[/tex] .................(ii)
From (1) and (ii)
[tex]8+\frac{b}{7}\neq 6+\frac{3}{7}[/tex]
This means, Jenna is not right.
Learn more about fraction here:
https://brainly.com/question/21010948
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