anquiper anquiper

15-10-2016
Mathematics

contestada

in a class of 18 there are 2 girls for every 1 boy. how many girls are there?

Respuesta :

15-10-2016

x-girls y-boys

if x+y=18 and 2x=y then

x+2x=18
3x=18
x=6

Answer Link

Haneefahr13 Haneefahr13

15-10-2016

2 girls = 1 boy
12 girls = 6 boys
12 + 6 = 18
girls = 12

Answer Link

Otras preguntas

Can someone tell me how to solve this, please!

In a forest ecosystem, a population of deer is at 400 individuals. The forest has enough resources to support 2,500 deer. What can you conclude? Select one: Th

8Which word best describes the building materials used in the Temple of Zeus and Artemis?A. OpulentB. SimpleC. UglyD. Cheap

how does finding fossils in mining quarries create bias in the fossil records?

The Hutton's records for the past six months show that their expenditures totaled $2.768, $3,001, $2,663, $2,471, $2,893, and $2,803. What is their average mont

Explain how President Clinton moved the nation back toward liberalism.

In the summer, temperatures in the town of Roxby Downs get as high as 104 degrees Fahrenheit. It is in one of the driest regions of southern Australia. Only des

Plssss helpppp me on this last answererrr

The price of a new home is $126,000. The value of the home appreciates 2% each year. How much will the home be worth in 10 years

Understanding Relationships between Overhead Variances, Budgeted Amounts, and Actual Units Produced and Direct Labor Hours Worked Last year, Gladner Company had