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Vlad [161]
3 years ago
9

Micaela is 2 years older than Sam. In 4 years, the sum of their ages will be 40. How old is Micaela now? Describe and fix any er

rors in the solution. Let m = Micaela’s age and s = Sam’s age. m = s + 2 (s + 4) + (s + 2 + 4) = 40 s = 15 Sam is 15.
Mathematics
2 answers:
hammer [34]3 years ago
7 0

Answer: Sample Answer: The equation and its solution are correct.

The question asked was not answered. The question asks for Micaela’s age, not Sam’s.

Micaela is 17 years old.

It is important to include the label of years in the answer.

Step-by-step explanation:For sure

Verdich [7]3 years ago
5 0

Answer:

Micaela is 17

Step-by-step explanation:

s+2=m

(s+2+4)+(s+4)=40

(s+6)+(s+4)=40

2s+10=40

40-10=30

2s=30

30/2= 15

s=15

{s+2=m}

15+2=m

m=17

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74% of 19 year old males are atleast 172 pounds , what percent of the males are not atleast 172 pounds?
swat32

Answer:

<em>The percentage of males are not at least 172 pounds</em>

P(X⁻ ≥ 172) = 0.26

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that 74% of 19 -year -old males are at least 172 pounds

Let 'X' be a random variable in a binomial distribution

P( X≥172) = 74% = 0.74

<em>we have to find that the percentage of males are not at least 172 pounds</em>

<u><em>Step(ii):-</em></u>

<em>The probability of males are not at least 172 pounds</em>

P(X⁻≥172) = 1- P( X≥172)

                 = 1- 0.74

<em>                  = 0.26</em>

<u><em>Final answer:-</em></u>

<em>The percentage of males are not at least 172 pounds</em>

P(X⁻ ≥ 172) = 0.26

<u><em></em></u>

7 0
3 years ago
5. Nathan can join a rock climbing club for $52 a month or a flat rate of
Trava [24]

Answer:

Solution: 9 or more months

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Step-by-step explanation:

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2. Round up since you can't pay for half a month

4 0
3 years ago
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dolphi86 [110]

Answer:

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Step-by-step explanation:

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1/9

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4 years ago
Identify the value of x that makes each pair of ratios equivalent
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I would be B. because from 4 to 20 is times 5 so you just divide 45 by 5 and you get 9.
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5 0
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