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Vadim26 [7]
3 years ago
6

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

of Devon and Milan, respectively, write a system of equations to describe this situation.
Mathematics
1 answer:
statuscvo [17]3 years ago
5 0

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.

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If you are starting with what you know about a large population and coming to a conclusion about a specific scenario, then which
Ostrovityanka [42]

Answer:

Education –> Mortality –> Fertility rates

Education –> Fertility rates

Step-by-step explanation:

Education and fertility is a key role to grow a large population. But if the mortality rate is low families tend to have less children.

4 0
3 years ago
Determine whether or not the random variable X is a binomial random variable. If so, give the values of n and p. If not, explain
dimulka [17.4K]

Answer:

Both are binomials.

Step-by-step explanation:

Given that

a) X is the number of dots on the top face of fair die that is rolled.

When a fair die is rolled, there will be 1 to 6 numbers on each side with dots in that.  Each time a die is rolled the events are independent.  Hence probability of getting a particular number in the die is 1/6. There will be two outcomes either the number or not the number.  Hence X no of times we get a particular number of dots on the top face of fair die that is rolled is binomial with n = no of rolls, and p = 1/6

b) X is the number of defective parts in a sample of ten randomly selected parts coming from a manufacturing process in which 0.02% of all parts are defective.

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7 0
3 years ago
Joel and two friends went to the movies. They each spent $5.50 on a medium popcorn and also had to buy a ticket. Altogether, the
irina1246 [14]
The answer is $9.50 because you need to take the total of the popcorn which is $16.50. Then subtract that from $45 and get $28.50. The last step to do is divide $28.50 by three to get your final answer= $9.50

The answer is= $9.50
8 0
3 years ago
Read 2 more answers
24,30,42 greatest common factor
elena-s [515]
6 is the greatest common factor of 24,30,42
6 0
3 years ago
Umm plz help with just the first part
harkovskaia [24]

Answer:

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Step-by-step explanation:

-2(x + 7) = 8

x + 7 = 8 / -2

x + 7 = -4

x = -4 - 7

= -11

6 0
3 years ago
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