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Jaime and her friend can keyboard 45 words per minute. Six other students in the class can type 30 words per minute. Four students have not yet timed their speed. Find the ratio of students who have timed their keyboarding to those who have not.

.5
2
.7
1.5

2007-12-31 00:07:28 · 3 answers · asked by sunny p 1 in Science & Mathematics Mathematics

3 answers

so 2 + 6 have and
4 have not

8 have 4 have not

twice as many have as have not

have a great 2008

2007-12-31 00:11:34 · answer #1 · answered by tom4bucs 7 · 1 0

2 people (Jaime and her friend) and six other people have timedtheir keyboarding.
Four students have not yet timed their speed.
(2+6)/4=8/4=2

2007-12-31 00:18:11 · answer #2 · answered by ♥*´`*•.katie.•*´`*♥ 2 · 0 0

one in two.

2007-12-31 00:10:30 · answer #3 · answered by ? 3 · 0 0