A is B times X? How do I solve for this.
Clash Royale CLAN TAG#URR8PPP
up vote
1
down vote
favorite
This has to be stupidly simple and easy, but I can't think of it. I havent done much math in a long time.
0.8 times X = 48. X = 60. But I figured that out by multiplying 60 by 0.8. If I don't know it's 60, how do I solve for X? From my elementary days I remember you can flip components across the = sign, so 0.8X = 48 and 48/X = 0.8 but that just moves the problem around.
linear-algebra
asked Sep 11 at 1:16
john doe
1063
add a comment |
up vote
1
down vote
favorite
This has to be stupidly simple and easy, but I can't think of it. I havent done much math in a long time.
0.8 times X = 48. X = 60. But I figured that out by multiplying 60 by 0.8. If I don't know it's 60, how do I solve for X? From my elementary days I remember you can flip components across the = sign, so 0.8X = 48 and 48/X = 0.8 but that just moves the problem around.
linear-algebra
asked Sep 11 at 1:16
john doe
1063
Why not do $frac480.8 = frac4808= 60$ ?
– WaveX
Sep 11 at 1:24
@WaveX Because that's literally magic and you people are wizards. Ty.
– john doe
Sep 11 at 1:25
To avoid headaches and brain strain you can to $0.8x = 48implies 8x = 480implies x = frac 4808 = 60$. Even less strain. $0.8x = 48implies 8x = 480implies 4x = 240implies 2x = 120 implies x = 60$. It's not magic. It's ... comfort.
– fleablood
Sep 11 at 1:31
Or see that $0.8$ and $48$ have $8$s in them... so $0.8 X = 48$ so $.1X = 6$ and just multiply both sides by $10$.
– fleablood
Sep 11 at 1:33
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
This has to be stupidly simple and easy, but I can't think of it. I havent done much math in a long time.
0.8 times X = 48. X = 60. But I figured that out by multiplying 60 by 0.8. If I don't know it's 60, how do I solve for X? From my elementary days I remember you can flip components across the = sign, so 0.8X = 48 and 48/X = 0.8 but that just moves the problem around.
linear-algebra
asked Sep 11 at 1:16
john doe
1063
This has to be stupidly simple and easy, but I can't think of it. I havent done much math in a long time.
0.8 times X = 48. X = 60. But I figured that out by multiplying 60 by 0.8. If I don't know it's 60, how do I solve for X? From my elementary days I remember you can flip components across the = sign, so 0.8X = 48 and 48/X = 0.8 but that just moves the problem around.
linear-algebra
linear-algebra
asked Sep 11 at 1:16
john doe
1063
asked Sep 11 at 1:16
john doe
1063
asked Sep 11 at 1:16
john doe
1063
asked Sep 11 at 1:16
john doe
1063
asked Sep 11 at 1:16
john doe
1063
1063
Why not do $frac480.8 = frac4808= 60$ ?
– WaveX
Sep 11 at 1:24
@WaveX Because that's literally magic and you people are wizards. Ty.
– john doe
Sep 11 at 1:25
To avoid headaches and brain strain you can to $0.8x = 48implies 8x = 480implies x = frac 4808 = 60$. Even less strain. $0.8x = 48implies 8x = 480implies 4x = 240implies 2x = 120 implies x = 60$. It's not magic. It's ... comfort.
– fleablood
Sep 11 at 1:31
Or see that $0.8$ and $48$ have $8$s in them... so $0.8 X = 48$ so $.1X = 6$ and just multiply both sides by $10$.
– fleablood
Sep 11 at 1:33
add a comment |
Why not do $frac480.8 = frac4808= 60$ ?
– WaveX
Sep 11 at 1:24
@WaveX Because that's literally magic and you people are wizards. Ty.
– john doe
Sep 11 at 1:25
To avoid headaches and brain strain you can to $0.8x = 48implies 8x = 480implies x = frac 4808 = 60$. Even less strain. $0.8x = 48implies 8x = 480implies 4x = 240implies 2x = 120 implies x = 60$. It's not magic. It's ... comfort.
– fleablood
Sep 11 at 1:31
Or see that $0.8$ and $48$ have $8$s in them... so $0.8 X = 48$ so $.1X = 6$ and just multiply both sides by $10$.
– fleablood
Sep 11 at 1:33
Why not do $frac480.8 = frac4808= 60$ ?
– WaveX
Sep 11 at 1:24
Why not do $frac480.8 = frac4808= 60$ ?
– WaveX
Sep 11 at 1:24
@WaveX Because that's literally magic and you people are wizards. Ty.
– john doe
Sep 11 at 1:25
@WaveX Because that's literally magic and you people are wizards. Ty.
– john doe
Sep 11 at 1:25
To avoid headaches and brain strain you can to $0.8x = 48implies 8x = 480implies x = frac 4808 = 60$. Even less strain. $0.8x = 48implies 8x = 480implies 4x = 240implies 2x = 120 implies x = 60$. It's not magic. It's ... comfort.
– fleablood
Sep 11 at 1:31
To avoid headaches and brain strain you can to $0.8x = 48implies 8x = 480implies x = frac 4808 = 60$. Even less strain. $0.8x = 48implies 8x = 480implies 4x = 240implies 2x = 120 implies x = 60$. It's not magic. It's ... comfort.
– fleablood
Sep 11 at 1:31
Or see that $0.8$ and $48$ have $8$s in them... so $0.8 X = 48$ so $.1X = 6$ and just multiply both sides by $10$.
– fleablood
Sep 11 at 1:33
Or see that $0.8$ and $48$ have $8$s in them... so $0.8 X = 48$ so $.1X = 6$ and just multiply both sides by $10$.
– fleablood
Sep 11 at 1:33
add a comment |
1 Answer
1
active
oldest
votes
up vote
1
down vote
Another way for us old geezers who don't like decimals: since $0.8 = frac 45$...
$$0.8 x = 48 Rightarrow dfrac 4x5 = 48 Rightarrow 4x = 240 Rightarrow x = 60$$
answered Sep 11 at 1:40
bjcolby15
1,0861916
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
Another way for us old geezers who don't like decimals: since $0.8 = frac 45$...
$$0.8 x = 48 Rightarrow dfrac 4x5 = 48 Rightarrow 4x = 240 Rightarrow x = 60$$
answered Sep 11 at 1:40
bjcolby15
1,0861916
add a comment |
up vote
1
down vote
Another way for us old geezers who don't like decimals: since $0.8 = frac 45$...
$$0.8 x = 48 Rightarrow dfrac 4x5 = 48 Rightarrow 4x = 240 Rightarrow x = 60$$
answered Sep 11 at 1:40
bjcolby15
1,0861916
add a comment |
up vote
1
down vote
up vote
1
down vote
Another way for us old geezers who don't like decimals: since $0.8 = frac 45$...
$$0.8 x = 48 Rightarrow dfrac 4x5 = 48 Rightarrow 4x = 240 Rightarrow x = 60$$
answered Sep 11 at 1:40
bjcolby15
1,0861916
Another way for us old geezers who don't like decimals: since $0.8 = frac 45$...
$$0.8 x = 48 Rightarrow dfrac 4x5 = 48 Rightarrow 4x = 240 Rightarrow x = 60$$
answered Sep 11 at 1:40
bjcolby15
1,0861916
edited Sep 11 at 12:52
answered Sep 11 at 1:40
bjcolby15
1,0861916
answered Sep 11 at 1:40
bjcolby15
1,0861916
answered Sep 11 at 1:40
bjcolby15
1,0861916
1,0861916
add a comment |
add a comment |
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f2912609%2fa-is-b-times-x-how-do-i-solve-for-this%23new-answer', 'question_page');
);
Post as a guest
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Why not do $frac480.8 = frac4808= 60$ ?
– WaveX
Sep 11 at 1:24
@WaveX Because that's literally magic and you people are wizards. Ty.
– john doe
Sep 11 at 1:25
To avoid headaches and brain strain you can to $0.8x = 48implies 8x = 480implies x = frac 4808 = 60$. Even less strain. $0.8x = 48implies 8x = 480implies 4x = 240implies 2x = 120 implies x = 60$. It's not magic. It's ... comfort.
– fleablood
Sep 11 at 1:31
Or see that $0.8$ and $48$ have $8$s in them... so $0.8 X = 48$ so $.1X = 6$ and just multiply both sides by $10$.
– fleablood
Sep 11 at 1:33