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Do you have to put on factor 10 suncream every ten minutes and factor twenty every twenty minutes?
Wiki User
∙ 13y ago
Um, no. The SPF number in sunscreen is how effective the sunscreen is in blocking out the harmful rays. So SPF 15 means that it is 15 times as effective as normal skin at resisting the UV rays that cause burns. It will normally say on the container how often to apply it.
Wiki User
∙ 13y ago
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How do camels urinate?
Every twenty minutes
In good conditions a bacterial cell splits every twenty minutes how many would be formed from a single original one after one hour?
After twenty minutes there will be two, then after another twenty four, then after another twenty, eight. Now the hour is up.
If one bacteria doubles every twenty minutes how many bacteria would you have after seven hours?
2,097,152
If you jump three times every minute for twenty five days how many minutes is that?
That's 18,000 minutes and you would have jumped 54,000 times
If one wheel moves once every 7 minutes and another moves once every 5 minutes how often will they rotate at the same time?
You need to look for the lowest common factor of 5 and 7 which is 35 minutes
When exercising outside apply sunscreen with a sun protection factor SPF of what or higher every what minutes?
15;90
When exercising outside apply sunscreen with a sun protection factor (SPF) of or higher every minutes.?
15;90
A certain amoeba divides every 10 minutes what is it in half an hour?
After ten minutes, there are now two. After twenty minutes, there are now four. After thirty minutes, there are now eight. In Half an Hour (30 minutes) you have eight amoeba (assuming none die).
What is the gcf of 2 minutes 3.5 minutes and 4 minutes?
The concept of a factor is relevant only for integers. As soon as you allow fractions then every non-zero fraction is a factor of any number, and the concept loses all significance.
How many amoebas will be in the jar by 500 if an amoeba is placed in a jar at 100 pm it reproduces by doubling every twenty minutes?
212 = 4096
What do green curb markings mean?
Green Curb Markings indicate no meters and provide for standing or parking no longer than twenty minutes at any time, twenty-four hours a day, every day.
Which number is a factor of every number?
1 is a factor of every number.1 is a factor of every number.
