MizzHoneyDue

07-10-2006, 02:05 AM

If r=5z then 15z=3y, then r =

This is how it is worded.

This is how it is worded.

View Full Version : Algebra equation: If r = 5z, then 15z = 3y, then r = ?

MizzHoneyDue

07-10-2006, 02:05 AM

If r=5z then 15z=3y, then r =

This is how it is worded.

This is how it is worded.

Mrspi

07-10-2006, 10:05 AM

If r=5z then 15z=3y, then r = this is how it is worded

I'm going to assume that this is your problem:

If r = 5z and 15z = 3y, then r = ?

r = 5z

Multiply both sides of this equation by 3:

3r = 15z

Now, we know that

3r = 15z and that 15z = 3y

By the transitive property of equality, we can conclude that

3r = 3y

Dividing both sides by 3 yields this:

r = y

If I have misinterpreted your problem, please reply with the exact wording that appears in your text.

I'm going to assume that this is your problem:

If r = 5z and 15z = 3y, then r = ?

r = 5z

Multiply both sides of this equation by 3:

3r = 15z

Now, we know that

3r = 15z and that 15z = 3y

By the transitive property of equality, we can conclude that

3r = 3y

Dividing both sides by 3 yields this:

r = y

If I have misinterpreted your problem, please reply with the exact wording that appears in your text.

Denis

07-10-2006, 10:08 AM

If r=5z then 15z=3y, then r = this is how it is worded

15z = 3y ; divide by 3:

5z = y

Since r = 5z, then r = y

MizzHD, your problem should (usually) appear like this:

r = 5z

3y = 15z

What is r in terms of y?

Tell that to your teacher :!:

15z = 3y ; divide by 3:

5z = y

Since r = 5z, then r = y

MizzHD, your problem should (usually) appear like this:

r = 5z

3y = 15z

What is r in terms of y?

Tell that to your teacher :!:

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