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anonymous
 one year ago
make a the subject of the formula s=a/4+8u
will medal
anonymous
 one year ago
make a the subject of the formula s=a/4+8u will medal

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undeadknight26
 one year ago
Best ResponseYou've already chosen the best response.2s = a/4 + 8u Subtract both sides by 8u. s  8u = a/4 Multiply both sides by 4. a = 4(s  8u)

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2are we solving for a in this question?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2I just want clarification before I go further

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2@Sophhh786 is this question about solving for a ? as in having a by itself?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2alright so given the equation \[s= \frac{a}{4}+8u\] is this your equation?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2alright so.. we need to get rid of the fraction. Therefore multiply 4 throughout the equation. Can you do that?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2close. the 4s and the a is right but for the 8u it should be 4(8u) = 32u

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2because we are multiplying 4 throughout the equation. every term is going to be multiplied by 4

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2\[(4)s= \frac{a(4)}{4}+8u (4)\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so it is like linear equations

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2so now we have \[4s=a+32u\] so we just need one more step. What do we need to do to get a by itself?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0divide 4 y both sides

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2not exactly.. we need a by itself and we have this equation. it's like get all the terms that's NOT a to the left so I need to subtract both sides by 32u

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i still dont understand why we need to multiply everything by 4 in the equation u should just multiply the 4 in the fraction and s ?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2we multiplied 4 throughout the equation at the beginning to get rid of the fraction

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2there's more than one way to solve this... first is what I and undeadknight did earlier which was to multiply 4 throughout the equation to get rid of the fraction that was attached to a. then subtract 32u on both sides. it will look something like this \[4s=a+32u \] \[4s32u=a+32u32u \] \[4s32u=a \]

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2so let's do an alternative version where we don't multiply 4 throughout the equation first.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2\[s= \frac{a}{4}+8u \] is the original equation. and we need a by itself. so I have to shift all terms (except a because we need it by itself to the right) therefore subtract 8u on both sides

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2\[s8u= \frac{a}{4}\] so we have a by itself... but now we have to divide each term by 1/4

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0im gonna stick with the first method you told me im gonna go through it step by step now if I have any difficulties in understanding i will give you a shout yeah? Thanks though :)

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2ok. :) yeah I prefer what @undeadknight26 did... for dividing 1/4 all over the equation.. we have to flip that second fraction (it will become 4/1 and then you have to use multiplication) because there's no such thing as dividing fractions.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yeh actually @undeadknight26 version makes sense to me

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2and fewer steps too :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the only thing i dont get is why has he inserted brackets has he factorized in the last stage or something

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2oh ... in that step there was a 4 in common so he took it out

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2a=4(s8u) distributing the 4 gives us a=4s32u now we split up the number 32 a=4s(4)(8)u there is a 4 on each term so we yank it out a=4(s8u)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0could you write it like this though a=4s32 would that be appropriate for the final answer?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok thanks @undeadknight26 and @UsukiDoll
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