mrpjams7364 mrpjams7364

01-01-2018
Mathematics

contestada

If shane mailed out 40% of his holiday cards, and he still has 18 cards left to mail, how many total cards did he have to mail?

Respuesta :

mreijepatmat mreijepatmat

01-01-2018

Let x be the total number of holiday's cards:

1st, he mailed 40% of x → 0.4x
2nd, he still have 18 cards
3rd, x = 0.4x + 18 → x-0.4x = 18 → 0.6x = 18 and x = 18/0.6 → x = 30

Answer Link

Otras preguntas

A biome that contains a layer of permanently frozen soil, called permafrost, would be classified as A. taiga B. desert C. tundra D. savannah E. temperate decidu

How many prime numbers are there between 56 and 100?

A test cross with an organism with a homozygous recessive genotype results in 50% of the offspring exhibiting the recessive trait. What is the genotype of the t

how do you figure out what is 1/4 of 10.

A midwestern music competition awarded 35 ribbons. The number of blue ribbons awarded was 3 less than the number of white ribbons. the number of red ribbons was

If y^8= 4 and y^7=3/x, what is the value of y in terms of x?

How do you say little sister, little brother, older sister, and older brother in Korean? I hope someone who actually know Korean can answer this question.

If 4x+5y=10 and x+3y = 8 then (5x+8y)/3=

A test cross with an organism with a homozygous recessive genotype results in 50% of the offspring exhibiting the recessive trait. What is the genotype of the t

What caused the rise of military government in Japan?