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Andre45 [30]
3 years ago
12

A hiker in Africa discover a skull that contains 63% of its original amount of C-14

Mathematics
1 answer:
romanna [79]3 years ago
8 0
Multiply the original amount by .63 to get your answer
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For which function does f(14)=23?
NARA [144]

Answer:

Third item in the list

Step-by-step explanation:

Third function:  f(x) = x + 9.  If we substitute 14 for x, we get f(14) = 14 + 9 = 23.

3 0
3 years ago
Coffee café mix 90 pounds of coffee that cost six dollars per pound the types of coffee used to make this makes you cost seven d
Troyanec [42]

Answer:

y =  60

Step-by-step explanation:

From the  information we get:

x  quantity of 4 dollars  coffee used in the mix

y  quantity of 7 dollars  coffee used in the mix

For the quantity of coffee to be sold a 7 $/pound  ( 90 pounds)

Then  6*90  =  540  $

Therefore

x  +  y  =  90     and

4*x  +  7*y  =  540

A two equations system we solve for x and y

y =  90  -  x

4*x  +  7* ( 90  -  x ) = 540

4*x  +  630 - 7*x  =  540

- 3*x  =  - 90

x = 30 pounds   and

y  =  90  -  30

y  =  60

We should use  60 pounds of the seven $ coffee

4 0
3 years ago
Write the function as a set of ordered pairs.
Naya [18.7K]

Answer:

1. (1,10) 2. (2,-3) 3. (3,3)

3 0
4 years ago
Three randomly selected households are surveyed. /The numbers of people in the households are 1, 3, and 8. Assume that samples o
inn [45]
The question is asking to find the variance for the said samples in the problem ans use the sample data to determine each variance, and base on my further computation and further calculation, I would say that the answer would be the following:
#1. 3.3 -> 1 and 3 -> 2/9
#2. 1-> 0->3/9
#3. 6.3 - > 8 and 3-> 2/9
#4 49-> 1 and 8-> 2/9
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3 years ago
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Umm u are cute what is your number
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