leading
leading
14-04-2018
Mathematics
contestada
4/r=5/7solve for r. Help pls
Respuesta :
prestonshelton
prestonshelton
14-04-2018
Hello!
You first cross multiply
4 * 7 = 28
5 * r = 5 * r
r * 5 = 28
Divide both sides by 5
r = 28/5 = 5.6
The answer is 28/5 or 5.6
Hope this helps!
Answer Link
penfila11Pen
penfila11Pen
14-04-2018
Hey there :)
[tex] \frac{4}{r}= \frac{5}{7} [/tex]
We can solve by cross multiplication
4 × 7 = 5 × r
28 = 5r
Divide by 5 on either side to isolate r and find its value
[tex] \frac{28}{5} = \frac{5r}{5} [/tex]
r = 5.6
Answer Link
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