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Alona [7]
3 years ago
9

A soduim isotpe, Na24, has a life of 15 hours

Mathematics
1 answer:
masha68 [24]3 years ago
4 0
What's the question?
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A farmstand sells bags containing 3 2/3 lb of apples. Elena bought 25 2/3 lb of apples. How many bags of apples did Elena buy?
Tcecarenko [31]
She would've bought 7 bags of apples, I believe.
3 0
3 years ago
Plz answer this!!!!!!!!!
Fed [463]

Answer:

32

Explanation:

Since you're looking for the 4th term in the sequence, go ahead and replace the <em>n</em> with 4:

 2*4^{4-2}

which is equal to

2*4^{2}

which is

2*16

and that is 32

4 0
3 years ago
A train normally travels 240 km at a certain speed. One day, due
Marrrta [24]

\large\bf{\underline\red{Good \: Afternoon♡}}

Normal-travel DATA:

distance = 240 km

rate = x km/h

time = d/r

= 240/x hrs

_______________________

Bad weather DATA:

distance = 240 km

rate = (x-20) km/h

time = 240/(x-20) hrs

______________________

Bad time - normal time = 2 hrs

240/(x-20) - 240/x = 2

120/(x-20) - 120/x = 1

120x -120(x-20) = x(x-20)

20 = x^2 -20x

x^2 - 20x - 20 = 0

x = [20 +- sqrt(20^2 - 4*1*-20)]/2

x = [20 +- sqrt(480)]/2

x = [20 +- 4sqrt(30)]/2

x = 10 +- 2sqrt(30)

6 0
3 years ago
What is the inverse of the given relationship?
timofeeve [1]

Answer:

An inverse relation is the set of ordered pairs obtained by interchanging the first and second elements of each pair in the original function. If the graph of a function contains a point (a, b), then the graph of the inverse relation of this function contains the point (b, a).

Step-by-step explanation:

Brainliest when you can if you will.

5 0
3 years ago
The difference of three times Faye’s age and four times Joshua’s age is 31. If Faye’s age is five more than twice Joshua’s age,
REY [17]

Answer:

Faye is 21

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

4 0
3 years ago
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