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Marina CMI [18]
3 years ago
9

Please help. Don’t answer unless you’re 100% sure.

Mathematics
1 answer:
zavuch27 [327]3 years ago
6 0

Answer:

A- mercury and helium

b- 1034.86

Step-by-step explanation:

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Devaughn's age is three times Sydney's age. The sum of their ages is <br> . What is Sydney's age?
g100num [7]

Answer:

syd is 23 and dev is 69


Step-by-step explanation:

Let Dev's age be x and Syd's age be y

Since Dev is 3 times older than Syd, we may write  

x

=

3

y

Since the sum of their ages is 92, we may write  

x

+

y

=

92

Now replacing x with 3y, we get :  

3

y

+

y

=

92

Hence  

y

=

92

4

=

23

and so Syd is 23 year old.

Back substituting we get Dev is 69 years old.

8 0
3 years ago
Read 2 more answers
a bag contains four blue, three green, and five red balls. if four balls are drawn at random, what is the probability that two a
inn [45]
The Fully simplified answer is 1/36
5 0
2 years ago
27^{3x}=(1/9)^x<br> write in b^x=b^y form
iogann1982 [59]

Answer:

3^9x=3^-2x

Step-by-step explanation:

27^3x=(1/9)^x

3^3×3x=(1/3^2)^x

3^9x=3^-2x

5 0
3 years ago
The lengths of a triangle are given below is the triangle obtuse acute or right ? 11,12,15
andriy [413]
Yes that is the answer
6 0
3 years ago
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Use the point-slope equation to identify the slope and the coordinates of a point
ioda

Answer:

see explanation

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

y - 4 = \frac{1}{2}(x - 1) ← is in point- slope form

with slope m = \frac{1}{2}

and (a, b) = (1, 4 ) ← point on the line

7 0
3 years ago
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