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

Which are 3 of the 4 economic variables? -business investment, recession, and stagflation -interest rates, disposable income, and GDP -consumer expectations,

what is the volume of the oblique cone shown? round the answer to the nearest tenth. the diagram is not drawn to scale. 178.0 in ^3 4,539.6 in ^3 2,269.8 in ^3

Name an event that's on most family home videos family feud

Write 0.79 repeating in lowest terms

A triangle has 2 angles that each measure 80°. What kind of triangle is it?

external fertilization in chordates... A. must take place on land B. must take place in water C. can take place in water or on land D. does not occur20 points

Find the surface area of the regular pyramid shown to the nearest whole number. The figure is not drawn to scale.

An independent variable is a. directly changed by the experimenter. b. manipulated by changes to the dependent variable. c. a variable that is kept constant.

1. Decide si la siguiente oración es correcta o incorrecta. Ustedes han hablido mal de mí. Correcto Incorrecto 2. Mi computadora se ha roto. Correcto Incorr

Order of Operations! Studying for finals