40 cats 20 dogs what is the ratio from cats to dogs

Chang and Cal both collect pearls. Chang has three more pearls in her collection than Cal. Write an expression to represent the

natta225 [31]

Let x be the number of pearls in Chang's collection. Let y be the number of pearls in Cal's collection.

Chang has 3 more than Cal, so x = y + 3.
Adding both collections would be x + y. It's easier to have an expression in one variable, so we will substitute what we had written about Chang in for x.
(y + 3) + y = 2y + 3.

6 0

3 years ago

Write 75% as a decimal and fraction in simplest form. SHOW ALL WORK.

Andrews [41]

75% means 75 per cent, or per hundred.
"Per cent" means "per hundred" or "0.01".
This means that 75% is 0.75 in decimal form.
75% as a fraction means 75 per hundred.
Keep in mind that "per" means to divide.
So, let's translate this into parenthesis.
75 (75) per (/) hundred (100).
Rewrite with only the parenthesis.
75 / 100.
This is 75% in fraction form, but isn't simplified. We can divide both numbers by 25.
75 / 25 = 3
100 / 25 = 4
Your simplified fraction is 3/4.

I hope this helps!

7 0

3 years ago

Find the mean, variance, and standard deviation of the binomial distribution with the given values of n and p. , The mean, ,

klemol [59]

Complete Question

Find the mean, variance, and standard deviation of the binomial distribution with the given values of n and p. , The mean, , is nothing. (Round to the nearest tenth as needed.)

p = 0.6 n = 18

Answer:

The mean $\mu = 10.5$