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What is the awnser of R plus 2s plus 3R?
It simplifies to: 2s+4R
2r plus 2s equals 50 and 2r minus s equals 17?
2r + 2s = 50 2r - s = 17 therefore 4r - 2s = 34 Add so that you can eliminate one of the variables: 2r + 2s = 50 4r - 2s = 34 ---------------- 6r + 0s = 84 Solve for r: 6r = 84 r = 14 Substitute r into one of the original equations: 2(14) + 2s = 50 28 + 2s = 50 2s = 22 s = 11 Doublecheck with the other original equation: 2(14) - 11 = 28 - 11 = 17
Ralph is 3 times as old as Sara In 6 years Ralph will be only twice as old as Sara will be then Find Ralph's age now?
1) 3S = R 2) R+6= 2 (S+6)= 2S+12 ----> R=2S+6 1,2 )--> 3S = 2S+6 ---> S=6 & R= 3 x 6 = 18 Ralph is 18 & Sara is 6 .
What is the sum of 2r and 2s?
since you do not know what r and s is all you need to write is... 2r + 2s the sum just simply means add them together.
What is the airport code for Karumba Airport?
The airport code for Karumba Airport is KRB.
What is 9r squared-4s square over 9r plus 6s?
9r2-4s2/9r+6sIt looks like you can factors the numerator(3r + 2s)(3r - 2s) [This is the factored form of 9r2-4s2]Put this back into the equation(3r+2s)(3r-2s)/9r+6sYou can also factor the denominator3(3r+2s)Put this back into the equation(3r+2s)(3r-2s)/3(3r+2s)You can cancel out the 3r+2s on top and bottom because they are the same they equal 1. Therefore your final answer is3r-2s over 3You could go further and say this is...r-(2/3)seither one is correct
How many variables are in 7y 3r - 2s 5z - 3m?
They are: y, r, s, z and m which makes 5 of them
What is the mathematical expression for the wave function of a 2s orbital in quantum mechanics?
The mathematical expression for the wave function of a 2s orbital in quantum mechanics is (2s) (1/(42)) (Z/a)(3/2) (2 - Zr/a) e(-Zr/(2a)), where represents the wave function, Z is the atomic number, a is the Bohr radius, and r is the distance from the nucleus.
How do you factor 4s2-9?
4s2 - 9 can be expressed by using the identity: a2 - b2 = (a-b)(a+b) Therefore, 4s2 - 9 = (2s)2 - 32 = (2s-3)(2s+3)
What is equevitent to 7s plus 2s?
The equivalent is 7s+2s = 9s
What is the answer to 2s-12 plus 2s equals 4s-12?
2s - 12 + 2s = 4s - 124s - 12 = 4s - 124s = 4ss = s==========this is an identity and any number can be s
What is the answer to 2s plus 16 equals 4s - 6?
2s + 16 = 4s - 6 Subtract 2s from both sides: 16 = 2s - 6 Add 6 to both sides: 22 = 2s divide both sides by 2: s = 11
