maths question

2009-04-13 6:02 am
How to calculate the following question, can show the detail steps to me, many thanks

0.1350 = r + 0.1541 - 1.34r

Need step and Ans.

回答 (3)

2009-04-13 7:33 pm
✔ 最佳答案
If 0.1350=r+0.1541-1.34r,

then 0.1350=0.1541+(r-1.34r).

So 0.1350= 0.1541+-0.34r,

then 0.1350=0.1541-0.34r.

So 0.1350+0.34r=0.1541-0..34r+0.34r,

then 0.1350+0.34r=0.1541.

So 0.1350+0.34r-0.1350=0.1541-0.1350,

then 0.34r=0.1541-0.1350.

So 0.34r=0.0191,

that is why r=56.17647.
參考: me
2009-04-13 7:04 pm
0.1350 = r + 0.1541 - 1.34r
-0.0191=-0.34r

r=0.0562(3 sig. fig.)

It is a equation at all~>3<★

You can do it by yourself~Or you can ask you friends or teachers.^^
參考: me~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2009-04-13 6:50 am
0.1350 = r + 0.1541 - 1.34r
-0.0191=-0.34r
r=0.0562(3 sig. fig.)


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