A liquid sample is removed from a vat whose temperature is held at a constant 2000 F. After 1.5 minutes in a room whose ambient temperature is held at 700 F, the sample temperature has cooled to 1700 F. The sample can be tested when its temperature has cooled to 1000 F. How many minutes (correct to the nearest tenth of a minute) after the sample is removed from the vat will it first be ready for testing?
a. 8.4
b. 9.8
c. 11.2
d. 12.6
e. 14.0
f. 15.4
g. 16.8
h. 18.2
i. 19.6
j. none of these
2007-02-24 09:22:32 · 3 answers · asked by chris 2 in Science & Mathematics ➔ Mathematics
yes, someone can solve it. (that was your original question after all) I can't though.
2007-02-24 09:28:38 · answer #1 · answered by lifelesswonder 4 · 0⤊ 1⤋
J
But you probably shoudn't take my word for it; I'm in 7th grade!
2007-02-24 09:29:37 · answer #2 · answered by nintendo_obsession 2 · 1⤊ 0⤋
j...the answer is 5.3 ...i think...
2007-02-24 09:29:45 · answer #3 · answered by Anonymous · 1⤊ 0⤋