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ss7ja [257]
2 years ago
8

Carbon-14 tests are often performed to determine the age of an organism that died a long time ago. Carbon-14 has a half-life of

5730 years. If a turtle shell is found and tested to have 65% of its original carbon-14, how old is it
Mathematics
1 answer:
Crank2 years ago
7 0

Answer:

2006 years old.

Step-by-step explanation:

If it had 50% of its carbon-14 it would be 5730 years old.

Since it has 65% left it is younger than 5730 years.

So it is (1 - 0.65) * 5730

= 2005.5 years old.

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Math challenging and now math challenging me to challenge math
erastovalidia [21]

Answer:

$30

Step-by-step explanation:

Total amount paid by the hire purchase scheme:

$60 + 6 * $45 = $60 + $270 = $330

Total amount paid in just the cash price:

$300

Difference:

$330 - $300 = $30

3 0
3 years ago
Help 4th grade math
Ymorist [56]
(32 + 18 + 13) / 3 = b

/ is divided by

you would add the boxes together and then divide them equally into the 3 displays
5 0
3 years ago
Read 2 more answers
jareline and jackie went to brunch at 1145am. if they left the restaurant at 112pm how long did they spend at the restaurant
kolezko [41]
It would be 1 hr and 27 mins 


8 0
3 years ago
Read 2 more answers
Solve this system of linear equations. -14x + 11y = 23 7x - 3y = 37 <br> x=? y=?
lesya692 [45]
<span> -14x + 11y = 23
+2(7x - 3y = 37)
----------------------
   0 + 5y = 97
y  = 97/5
y = 19.4

7x - 3(19.4) = 37
7x - 58.2 = 37
7x = 37 + 58.2
7x = 95.2
x = 95.2/7
x = 13.6

Check

-14(13.6) + 11(19.4) = 23
-190.4 + 213.4 = 23
</span>
3 0
3 years ago
CAN ANYBODY PLS HELP
Firdavs [7]

The correct options are

5x =  - 58 \:5x + 4 =  - 54

<h3>How to find same value of x?</h3>

given that

\frac{5}{6} x +  \frac{2}{3}  =  - 9

first find value of x to obtain the equations have the same value of x.

Find the L.C.M between the 6,3

\frac{5x + 4}{6}  =  - 9

Then Cross multiplication should be done

5x + 4 =  - 9 \times 6 \\ 5x + 4 =  - 54 \\ 5x =  - 54 - 4

5x =  - 58

Hence the correct options are

5x =  - 58

5x + 4 =  - 54

Learn more about problems on equations, refer:

https://brainly.in/question/742266

#SPJ9

7 0
1 year ago
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