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kap26 [50]
3 years ago
10

If 18 g of a radioactive substance are present initially and 9 yr later only 9 g remain, how much of the substance will be prese

nt after 12 yr?
After 12 yr there will be g of a radioactive substance.
(Round the final answer to three decimal places as needed. Round all intermediate values to seven decimal places as needed.)
Mathematics
1 answer:
kvasek [131]3 years ago
8 0

Answer:

Him hhhuuu vividly

Step-by-step explanation:

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I have no idea what to do pls help ​
kati45 [8]

Answer:

101 = first number

115= second number

101+115=116

101 and 115

yes they are odd because you can not add two nubers to make 101 or 115

yes. they do add up to 116.

Step-by-step explanation: hope this helped

7 0
2 years ago
Rachel is a lunchroom supervisor at West School. The children eat lunch at 15 long tables. When all tables are used, 240 childre
Diano4ka-milaya [45]
240÷15=16 seats at each table

Since there were 15 tables and 240 in total you have to divide to find the number of seats at a table
6 0
3 years ago
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What is the surface area of a rectangular prism that has these dimensions? 2 cm x 3 cm x 5 cm?
algol [13]
30 centimeters cubed is the answer
8 0
3 years ago
A rectangle has an area of 3/2 square yards. If the width of the rectangle is 1/2 yard, which statement is true?
dezoksy [38]
The answer is in your heart
7 0
3 years ago
Find two numbers such that one exceeds the other by 11 and their sum is 73.
Whitepunk [10]

Answer: 31 & 42

<u>Step-by-step explanation:</u>

1st #: x

2nd #: x + 11

1st# + 2nd# = sum

 x    +  x + 11 =  73

         2x + 11 = 73

         2x        = 62

           x          = 31


2nd #: x + 11   = 31 + 11   = 42

5 0
3 years ago
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