chandu95
chandu95 chandu95
  • 10-08-2018
  • Mathematics
contestada

How do I do this I am really confused

How do I do this I am really confused class=

Respuesta :

oreocharliechester oreocharliechester
  • 10-08-2018

20 children get x cards each: total number of cards = 20x

21 children get x-2 cards each: total number of cards = 21(x-2)

21(x-2) = 20x

21x - 42 = 20x

x = 42

Total number of cards = 20*42 = 840

Answer Link

Otras preguntas

PLS HELP ASAP FIRST CORRECT ANSWER GETS BRAINLEIST​
Repair of damaged DNA, in some instances and mechanisms, might be viewed as a race between an endonuclease and Group of answer choices helicase. primase. methyl
Im confused on how to use distance formula on this
2y-11 7-4y find the value of y
NO LINKS!!! Kim invested $5000 in Mutual fund at 6% compounded quarterly. Write an equation to represent this situation. When will her investment be worth more
hinders the body's ability to absorb needed amounts of oxygen.
Can I get help please?
how much grain can this container hold ? express your answer in terms of [tex]\pi[/tex]
A glass bottle filled with oil weighs 590 grams. After Sophia uses 200 milliliters of oil, the bottle of oil weighs 400 grams. The weight M of the bottle of oil
what'up friends? Please answer and show work ty