staywoke50078
staywoke50078 staywoke50078
  • 02-08-2018
  • Mathematics
contestada

A) (m+n)/30st

B) 30(m+n)/st

C) 30(mt+ns)

D) 30(mt+ns)/st

E) mt+ns/30st

A mn30stB 30mnstC 30mtnsD 30mtnsstE mtns30st class=

Respuesta :

rejkjavik rejkjavik
  • 02-08-2018

Jules can make m muffins in s minutes

so, Jules making rate is [tex] \frac{m}{s} [/tex]

Alice can make n muffins in t minutes

so, Alice making rate is [tex] \frac{n}{t} [/tex]

now, we can find total rate when they make together

total rate is

[tex] =\frac{m}{s}+\frac{n}{t} [/tex]

now, we can combine it

[tex] =\frac{mt+ns}{st} [/tex]

now, we can find total number of muffins in 30 minutes

[tex] =30*(\frac{mt+ns}{st}) [/tex]

so, option-C......Answer

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