There are 60 seconds in a minute
so (3 minutes = 180 seconds) + 15 seconds
= 195 seconds
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4b+3=15 4b=15-3 b=(15-3)/4 b=3
-2
To evaluate 15k when k equals 3, you would substitute the value of k into the expression. Therefore, 15k becomes 15(3), which simplifies to 45. So, when k equals 3, 15k equals 45.
3t - 15 = -9 3t - 15 (+15) = -9 (+15) 3t = 6 3t (/3) = 6 (/3) t = 2
It is a single trigonometric equation in 2 variables. It cannot be solved without further information.