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Reil [10]
2 years ago
14

A radioactive compound with mass 320 g the keys at a rate of 27% per hour which equation represents how many grams of the compou

nd mean after four hours
Mathematics
1 answer:
Leviafan [203]2 years ago
7 0

Answer:

See below

Step-by-step explanation:

27 % decay means   73 % is left

320 ( .73)^n       would be how much is left after ' n ' hours

<u>left = 320 (.73)^4    </u>     ( 90.9 gm left)

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PLS HELP! ONLY IF YOUR 100% SURE PLS ANSWER NO PHONY ANSWERS PLS PLS PLS
Fed [463]

P=2L+2W

300=2L+2 \cdot 57

300=2L+114

2L=300 - 114

2L=186

L=\frac{186}{2}  = 93

proof:

300=2\cdot 57+2 \cdot 93

300 = 114 + 186

300 = 300

I Hope I helped you!

8 0
2 years ago
Read 2 more answers
Decrease 763994 by two thousand?
mel-nik [20]
761,994 would be the answer to 763,994 - 2,000
5 0
3 years ago
Read 2 more answers
Which of the following is not a possible number of solutions when solving a system of equations containing a quadratic and a lin
Ksivusya [100]
3.

You could probably look up a fancy explanation of why this is, by I just went the easy route.

1 is definitely possible.

2 is too!

(Sorry if the images are hard to see)

So the answer has got to be 3!

Hope this helps!

4 0
3 years ago
Ignore the stuff underneath I did it in pen and messed up.
Vinil7 [7]
U didn't mess up....
V = pi * r^2 * h....divide both sides by (pi)r^2
V / (pi)r^2 = h
7 0
3 years ago
A boat traveled 15O feet in 12 seconds how far would be the boat travel in 1
Lapatulllka [165]

Answer:

About 12.5 feet.

Step-by-step explanation:

You take 150feet and divide it by 12, once you do that you get 12.5 feet. to double check that you do 12.5 times 12 and you get 150

5 0
3 years ago
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