fgilz9zmegmeg fgilz9zmegmeg
  • 02-04-2017
  • Mathematics
contestada

The ratio of girls to the total number of students in class is 4 to 7 how many students are girls if the class has 20 students in all? 4/7=/21
a.) 16
b.) 18
c.) 14
d.) 12

Respuesta :

lisee7 lisee7
  • 02-04-2017
D
4/X= X/20
Cross multiply
7x=80
Divide by 7
X= 11.4
Answer Link

Otras preguntas

El producto de 4 y un numero, aumentado en 17 es 221. Cual es el numero?
three strategies which local municipality is implementing in addressing the issue
The inner planets—Mercury, Venus, Earth, and Mars—are believed to have been formed by _____.
When looking at the map, what can you tell about the colonial european settlements?
What are the Dead Sea scrolls
John needs to make a scale drawing of his school building for art class. If the building is 256.25 meters long, and John scales it down using a ratio of 25 mete
Express the set of real numbers between but not including 2 and 5 as follows.
At what points will the line y=x intersect the unit circle x^2+y^2=1
scientific observations: a. are limited to available equipment used to record a natural phenomenon. b. can be made by instrumentation c. can be made directly by
What times what equals 18