sukijaki2003 sukijaki2003

30-04-2015
Mathematics

Answered

there are 420 girls and boys at a community centre.The ratio of girls and boys at the centre is 7to 3.How many girls are at the concert

Verified Answer :

crisforp crisforp

30-04-2015

g + b = 420 ;
g / b = 7 / 3 ;
Then, g = ( 7 / 3 )b;
( 7 / 3 )b + b = 420 ;
7b + 3b = 1260 ;
10b = 1260 ;
b = 126 ( boys );
g = ( 7 / 3 )× 126 = 294 ( girls ) ;

Answer Link

Related Questions

In what ways did economic competition between countries come at the expense of others

which of these is an example of quantitative data collection A recording amounts of chemicals used in an experiment and any temperature changes observed B listi

which of the original 13 states had an immigration population of 20 percent or more in the mid1800s

Which spirit is traditionally added to butter and served with Christmas pudding

how do i round to the nearest tenth

Please Help I suck at history 28 Changes in literary styles new techniques in art and photography and talking pictures are all examples of what 1920s cultural t

Brenna already owns 3 necklaces and additional necklaces are priced at 2 for a dollar How much money does Brenna need to spend on new necklaces in order to own

When learning to manage time it is important to reward yourself for accomplishing goals

What percent of 44 is 11

Recall that the height of an object t seconds after it begins moving when gravity is the only force acting on the object is given by ht16t2v0th0 where ht is giv

Web Analytics Made Easy - Statcounter