Valde07mendes Valde07mendes

20-12-2017
Mathematics

contestada

At a school number of boys : number of girls = 11 : 9

There are 124 more boys than girls.
Work out the total number of students at the school.

Respuesta :

lilyamj lilyamj

20-12-2017

ok, so 11:9
11-9 = 2
which means that 124= 2:1
124/2 = 62
so 62:0
now 11 x 62= 682
9 x 62= 558

so the ratio is 682:558
now 682 + 558 = 1,240
There are 1,240 total students in the school. 682 boys and 558 girls

Answer Link

Otras preguntas

If P(A)=.55, P(B)=.32 And P(AuB)=.70, A. Find P(A|B) round to 4 decimal places B. Find P(A’|B) Round to 4 decimal places

Iron has a density of 7.86 g/cm3. Calculate the volume (in dL) of a piece of iron having a mass of 4.07 kg . Note that the density is provided in different unit

an online book store has 173 boxes of books in its warehouse each box has 48 books how many books are in the warehouse

What is necessary to be a doctor assistant

the percentage of the tax rate if the business office was valued at $135,000

Choose the answer that best completes the blanks of this sentence in the correct order. Two different kinds of appendages may be found on eukaryotic cells th

how can 9 billion people be feed

Anais bought 4 1/2 yards of ribbon. She had 3 feet 8 inches of ribbon left after trimming some curtains. How many inches of ribbon did Anais use to trim the cur

DNA replication process

During the current year, Robby’s Camera Shop had sales revenue of $169,000, of which $68,000 was on credit. At the start of the current year, Accounts Receivabl