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

Genetic variation occurs when chromosomes are shuffled in fertilization and what other process?. mitosis mutation meiosis genetic drift natural selection

Which nineteenth-century American values came from the Puritans of the 1600s?

when solving absolute value equations, how would i solve 15 -2k =45?

The price of bananas went from $0.20 per lb to $0.60 per lb in four years. Find the rate of change of the price of bananas. A) $0.05 per pound per year B) $0.

what was the name of the present in 1999

For the ishihara test, the patient is shown 14 color plates or pages and must correctly identify ________ to be considered to have color vision within normal li

Which number represents the opposite of -7? A. -(7) B. - (+7) C. - (-7) D. + (-7)

Help the body absorb calcium

When a hydrocarbon undergoes combustion, it reacts with blank and produces blank.

State one reason why sodium 24 isotope is rarely