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3 years ago

How many pounds of walnuts that cost $0.80 per pound must be mixed

Mathematics

2 answers:

jeyben [28]3 years ago

6 0

Answer:

kt 5.20 yes

Step-by-step explanation:

mojhsa [17]3 years ago

3 0

5.20

Step-by-step explanation:

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Devon is 30 years older than his son, Milan. The sum of both their ages is 48. Using the variables d and m to represent the ages

statuscvo [17]

Answer+Step-by-step explanation:

m = man's age

s = son's age

m=s+36

(m+8)=3*(s+8)

Resolves to: s=10, m=46

So the man is 46 (=10+36).

In 8 years, son is 18 (=10+8), man is 54 (=3*18 and 46+8), thank you.

5 0

3 years ago

How do i work out compound interest?

Artyom0805 [142]

Answer:

The formula for compound interest is P (1 + r/n)^(nt), where P is the initial principal balance, r is the interest rate, n is the number of times interest is compounded per time period and t is the number of time periods.

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2 years ago

Marley brought 290 pennies to the bank. How many dimes did marley get?

igor_vitrenko [27]

2 one dollar bills 3 quarters 1 dime and 1 nickel

6 0

3 years ago

Express as a trinomial.<br> (2x+4)(x-1)

alex41 [277]

-2x^2+2x-4 is the answer

5 0

3 years ago

Read 2 more answers

Out of a group of 120 students that were surveyed about winter sports 28 said they ski 53 said they snowboard Sixteen of the stu

hjlf

Answer:

P ( snowboard I ski) = 0.5714

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Ski

Event B: Snowboard.

28 out of 120 students ski:

This means that $P(A) = \frac{28}{120} = 0.2333$

16 out of 120 do both:

This means that $P(A \cap B) = \frac{16}{120} = 0.1333$

P ( snowboard I ski)

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.1333}{0.2333} = 0.5714$

P ( snowboard I ski) = 0.5714

7 0

3 years ago

Read 2 more answers