joannadegro
joannadegro joannadegro
  • 02-03-2017
  • Mathematics
contestada

The ratio of girls to boys in the geography bee was 5 to 4. There were 36 total students. How many were boys?

Respuesta :

H1a2r3s4h5 H1a2r3s4h5
  • 02-03-2017
Girls:boys=5:4
So girls=5x
Boys=4x
total students=36
5x+4x=36
9x=36
x=4
So girls are=5x=5×4=20
Boys are=4x=4×4=16
Answer Link

Otras preguntas

SOMEONE PLEASE HELP!!
What types of activity might decrease the battery life of a fully charged battery?
Which claim is both arguable and defensible? A. Ancient trees are afraid of logging equipment. B. Finishing college takes effort and perseverance. C.
What happens when aerobic bacteria break down dead algae?
I really need help!!
Which are 3 of the 4 economic variables? -business investment, recession, and stagflation -interest rates, disposable income, and GDP -consumer expectations,
Which is an x-intercept of the continuous function in the table? (–1, 0) (0, –6) (–6, 0) (0, –1)
Of the 34 cars in a parking lot, 12 are blue, 8 are red, 4 are white, and 10 are silver. in simplest form, what are the odds in favor that the next car that lea
What is upward and downward social mobility of children to their parents called?
Celia is staring at the clock waiting for school to end so that she can go to track practice. She notices that the 4-inch-long minute hand is rotating around th