Answer:
it is 192000 is got it right
Answer:
Assuming the formula below, the answer is:
![r=\dfrac{12s}{12+t}](https://tex.z-dn.net/?f=r%3D%5Cdfrac%7B12s%7D%7B12%2Bt%7D)
Explanation:
I can teach you how to <em>make r the subject of a formula</em>, with an example.
Other similar question asks to make r the subject of this formula:
![t=\dfrac{12(s-r)}{r}](https://tex.z-dn.net/?f=t%3D%5Cdfrac%7B12%28s-r%29%7D%7Br%7D)
<u>1. Apply multiplication property of the equalities: muliply both sides of the equality by r</u>
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<u>2. Apply distributive property on the right side</u>
![t\cdot r=12s-12r](https://tex.z-dn.net/?f=t%5Ccdot%20r%3D12s-12r)
<u>3. Addition property: ad 12r to both sides</u>
![t\cdot r+12r=12s](https://tex.z-dn.net/?f=t%5Ccdot%20r%2B12r%3D12s)
<u>4. Common factor r on the left side</u>
![r(12+t)=12s](https://tex.z-dn.net/?f=r%2812%2Bt%29%3D12s)
<u>5. Division property of equalities: divide both sides by 12 + t</u>
![r=\dfrac{12s}{12+t}](https://tex.z-dn.net/?f=r%3D%5Cdfrac%7B12s%7D%7B12%2Bt%7D)
15/8 = 75/40
2/5 = 16/40
7/8 = 35/40
75/40 + 16/40 - 35/40=
40/40 + 16/40 = 56/40
your answer is 1 16/40
simplest form: 1 2/5
hope this helps
I’m assuming you have to simplify ?
if so , x2+2y-8/x2=1