When you have 3f plus f plus 4f, you are adding together like terms. In this case, the variable "f" is the same, so you can add the coefficients together. 3f + f is 4f, and when you add 4f to that, you get 8f. Therefore, 3f + f + 4f equals 8f.
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Well, darling, if we're talking math here, 3f plus f plus 4f equals 8f. It's as simple as that. Don't overthink it, honey. Just add up those f's and you'll get your answer.
Oh, dude, that's like basic math, but sure, I'll humor you. So, 3f + f + 4f equals 8f. Easy peasy lemon squeezy. Now go impress your friends with your newfound math skills or something.
It is an expression and can be simplified to: 3d+f+1
3f - 2 = 4f + 5 You are looking for an unknown number, f. In the end, you want to know that f equals a specific number; the number on one side of the equation and f on the other. So first you want to get it in that format: -2 = 5 + 4f - 3f -2 - 5 = 4f - 3f Now solve: -7 = f You can see that f equals -7. This is what you're looking for.
A harmonic of a wave is a component frequency of the signal that is an integer multiple of the fundamental frequency. If the fundamental frequency is f, the harmonics have frequencies f, 2f, 3f, 4f, etc. Even harmonics are 2f, 4f, 6f, ... Odd harmonics are f, 3f, 5f, ... And remember: Even harmonics 2f, 4f, 6f,... are odd overtones. Odd harmonics f, 3f, 5f,... are even overtones. Scroll down to related links and look at "Calculations of harmonics from fundamental frequency".
It snowed 15 inches in January and 5 inches in February. If January has three times the snow as February, let F = snow in February J + F = 20 3(F) + F = 20 inches 4F = 20 F = 5 J = 3F = 15
4/5 (4 + f) = 4(4+f)/5