mistyreisorow1ul2 mistyreisorow1ul2

10-09-2017
Mathematics

contestada

There are 7 more girls than boys in a class. There are 23 students in the class in all. How many girls are there in th class. What are the unknowns in this problem

Respuesta :

texaschic101 texaschic101

10-09-2017

The unknowns : number of boys (b) and number of girls (g)

b + g = 23
g = b + 7

b + b + 7 = 23
2b + 7 = 23
2b = 23 - 7
2b = 16
b = 16/2
b = 8 <=== there are 8 boys

g = b + 7
g = 8 + 7
g = 15 <=== there are 15 girls

Answer Link

Otras preguntas

Which lines in this excerpt from act III of Shakespeare’s Romeo and Juliet best show Lord Capulet’s oppressive and authoritarian nature? a. CAPULET: Things have

which word gives a passage a cheerful mood? A) wind B) pathway C) leaves D) playfully

English bills of rights

In the following passage from Great Astronomers by Robert Stewall Ball, the author states that he will trace the developments in astronomy from the time of Ptol

a+5.7>-2.3 what is the answer

Scarlett is trying to find the height of a dam. She stands 90 meters away from the dam and records the angle of elevation to the top of the dam to be 26º. Scarl

what was the main reason the u.s. belivied it was acting correctly by getting involved in the korean war and vietnam war

The BEST way to correct a poor decision is to __________. A. stop, blame, and react B. yell, apologize, and move on C. stop, think, and go D. pause, ignore, and

DNA technology in agriculture.

Muscle cells would contain a high number of A. Lysosomes B. Mitochondria C. mRNA D. Golgi bodies