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2 years ago

48 cookies; 25% decrease=?

1 answer:

5 0

First, you do a proportion. X/48=25/100. 25 times 48 equals 1,200. Now divide 1,200 by 100 which equals 12. This means 12 cookies is 25% of 48 cookies. Now do 48-12 which is 36. YOUR ANSWER IS 36

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Which of the following is a term in the algebraic expression:

tankabanditka [31]

Answer:

Hello!

____________________

Your answer would be (C).

Hope this helped you!

4 0

3 years ago

Seeds are often treated with fungicides to protect them in poor-draining, wet environments. A small-scale trial, involving six t

alukav5142 [94]

Answer:

0.0076 = 0.76% probability that all five plants emerged from treated seeds

Step-by-step explanation:

The plants were chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

6 + 6 = 12 seeds, which means that $N = 12$

6 treated, which means that $k = 6$

Five sprouted, which means that $n = 5$

What is the probability that all five plants emerged from treated seeds?

This is P(X = 5). So

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = 5) = h(5,12,5,6) = \frac{C_{6,5}*C_{6,0}}{C_{12,5}} = 0.0076$

0.0076 = 0.76% probability that all five plants emerged from treated seeds

3 0

3 years ago

What will you choose for me

wlad13 [49]

Answer: grey-

blue-

yellow

Step-by-step explanation:

6 0

2 years ago

Chris bought 6 packages of napkins for his restaurant. there were 200 napkins in each packet. how many napkins did chris buy

IgorC [24]

It would be 1,200 napkins hope this helps

4 0

2 years ago

Read 2 more answers

How to solve a verbal problem algebraically

jenyasd209 [6]

Step 1. You must write down/ underline all the numbers given in the problem.

Step2. Identify all the unknown variable such as x, y, a, b [those are the most common ones].

Step 3 Identify what sign of operation your working with... It can be +,-,×,÷.

Step 3 write down all your terms on the LHS of the equation.

Step 4. Equate all the constant on the RHS of the equation. If the constant was negative It would be positive and vic versa

Step. Solve your problem

5 0

3 years ago