Denice has similar cookie trays. the first tray is 12 inches long and 9 inches wide. the second tray is 8.?

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Denice has similar cookie trays. the first tray is 12 inches long and 9 inches wide. the second tray is 8.?

how wide is teh second tray?
a.3 in
b.4 in
c.6 in
d.12 in

2007-01-02 11:27:50 · 3 answers · asked by La Eztrellita 1 in Education & Reference ➔ Homework Help

3 answers

if the width of the second tray is x cm,we can say that
x/8=9/12
=>12x=72 (by cross-multiplication)
Therefore,x=6 cm
The second tray is 6 cm wide.

2007-01-02 12:32:12 · answer #1 · answered by alpha 7 · 0⤊ 0⤋

You need to find out what fraction with 8 as a numerator is the same as 12/9 - or in other words, what is x in the equation 12/9 = 8/x. I am not going to do your homework for you, but that is how to set it up.

2007-01-02 19:35:19 · answer #2 · answered by Maple 7 · 0⤊ 1⤋

c. 6 in

2007-01-02 19:35:10 · answer #3 · answered by Anonymous · 0⤊ 0⤋