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Virty [35]
2 years ago
11

An element with a mass of 630 grams decays by 30% per minute. To the nearest minute, how long will it be untill there are 30 gra

ms of the element remaining?
Mathematics
1 answer:
nataly862011 [7]2 years ago
6 0

Answer:

It should take somewhere between 8 to 9 minutes to decay until there are 30 grams remaining.

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Which problem can be solved using the equation shown? 2 dollars and 50 cents x minus 2 dollars = 10 dollars and 50 cents Will bo
Black_prince [1.1K]

Step-by-step explanation:

Will bought several books that cost $ 2.50 each and received a $ 2 discount on the total bill. If he paid $ 10.50, how many books did he buy ?

2.50x  - 2.00 = 10.50

2.50x = 10.50 + 2.00

2.50x = 12.50

x = 12.50/2.50

x = 5....he bought 5 books

4 0
2 years ago
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The solid graph is a translation of RootIndex 3 StartRoot x EndRoot. On a coordinate plane, 2 cube root functions are shown. The
serious [3.7K]

Answer: 2 units up.

Step-by-step explanation:

If you take a look at the graph, it shows that it is 2 units up from where it initially started, therefore it is moved 2 units up. It says the SOLID graph is the translation, therefore it would be moving 2 units up.

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2 years ago
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What is the value of 3 in 8,531,980,112.45
Neko [114]

Answer:

30,000,000

Step-by-step explanation:

You are given the number 8,531,980,112.45.

Look at attached place value chart.

If we go to the left from decimal point, then we have

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Digit 3 in the number  8,5 <u>3</u> 1,980,112.45 is on ten millions position, so the value of this digit is 30,000,000

6 0
2 years ago
A town has a population of 13000 and grows at 4.5% every year. What will be the population after 13 years, to the nearest whole
hodyreva [135]
23,039. 
y=13,000(1.045)^t
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You get 1.045 because you add 1+ the percentage in decimal form.
6 0
1 year ago
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Dying for help please failing mathh
JulsSmile [24]
You might want to stick to at most five questions at once, makes it easier for the rest of us. :)

17. T has a vertical line of symmetry (along the center line).
18. Z looks the same if you turn it halfway around.
19. The passes total to 150°, which is a little less than 180°, so I estimate it would be in front of Kai.
20. Left is the -x direction. Up is the +y direction. this is (x-6, y+4)
21. Every dilation has a center (where it's dilated from) and a scale factor (how much it's dilated).
22. It must be A, because it's the only one where the number of moves adds up to 16.
23. It can be determined to be B just by tracking where point C would end up through the transformation.
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25. Right is the +x direction. Down is the -y direction. (x+3, y-5)
26. This is a reflection.

Need clarification on anything?
4 0
2 years ago
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