Kathy can key in 6 letters every 3 seconds on her phone. How many letters can she type in a minute and a half?
2 answers:
Answer:
She can type 180 letters in a minute and a half.
Step-by-step explanation:
6 letters per 3 seconds, so we need to find how many letters per 90 seconds, or minute and a half.
6/3 = x/90
Where x represents how many letters she can type in 90 seconds.
2 = x/90
Multiply by 90.
x = 180.
Kathy can type 180 letters
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