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What is 8s equals 72?
8s = 72 divide both sides by 8 s = 9
Solve the system of equations 3r -4s equals 0 and 2r plus 5s equals 23?
Presumably this is a simultaneous equation in the form of: 3r-4s = 0 2r+5s = 23 Multiply all the terms in the top equation by 2 and in the bottom equation by 3: 6r-8s = 0 6r+15s = 69 Subtract the bottom equation from the top equation: -23s = -69 Divide both sides by -23 to find the value of s remembering that a minus number divided into a minus number is equal to a plus number: s = 3 Substitute the value of s into the original equations to find the value of r: Therefore: r = 4 and s = 3
.625 equals what fraction?
0.635 is 625/1000. In lowest term, it is 5/8. 1/8 is 0.125, so 5 more 1/8s is 5/8 or 0.625.
How do you make 6 using three 8?
(sqrt((8/8)+8))! = 6 Since: 8 divided by 8 equals 1 1 + 8 = 9; the square root of 9 is 3; 3 factorial equals 6. Alternatively, there is: cube_root(8) + cube_root(8) + cube_ root(8) = 6
-5(-8s-3) plus 2(5s plus 4)?
Following order of operations, multiplication happens first and addition happens second. -5(-8s-3)+2(5s+4) =40s+15+10s+8 =50s+23 50s+23 cannot be added as they are not like terms. Like terms need to have the same variables.
