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Varvara68 [4.7K]
3 years ago
13

Write an equation to find how long it will take for the mass of the radioactive substance to reach 27grams.

Mathematics
1 answer:
kiruha [24]3 years ago
3 0

were are the answer choices

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Help pls i'll give brainliest
lilavasa [31]

Answer:

no they aren't inverses bc they arent the same numbers

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
a store makes a profit of $8 on a sweater after a markup of 40%. what is the selling price of the sweater?
gulaghasi [49]
If you would like to know what is the selling price of the sweater, you can calculate this using the following steps:

40% of x is $8
40% * x = 8
40/100 * x = 8      /*100/40
x = 8 * 100 / 40
x = $20

Result: The selling price of the sweater is $20.
4 0
3 years ago
Read 2 more answers
What's rise over run
olganol [36]
You use "Rise Over Run" to measure how steep a slope is or to discover whether a slope exists at all.

"Rise Over Run" can also be known as the "gradient", "slope" or "tangent".

Rise / Run = (y₂-y₁)/(x₂-x₁) = Opposite / Adjacent

These values can be positive or negative as positive and negative slopes exist in mathematics.
7 0
2 years ago
Find the largest and smallest whole number when rounded to the nearest hundred to give 1600.​
kifflom [539]

Answer:

Step-by-step explanation:

Smallest and largest whole number which gives 1600 when rounded to the nearest hundred.

The lowest whole number is 1550

The highest while number is 1649

Wheb rounding to the nearest hundred, the tens value which comes after the hundred value is carefully observed, of the tens value is less than 5, then it is rounded down to zero. However, if the tens value is greater than or equal to 5, it is rounded to 1 and added to the hundred value.

Numbers below 1550 will not round to 1600 (nearest 100) also numbers greater than 1649will not round to 1600(nearest 100).butvall numbers in between them will round to 1600 (nearest hundred)

7 0
2 years ago
A scientist measured 18 grams of
olya-2409 [2.1K]

Hence, option A 0.64 is the correct answer.

Further explanation:

Ounce is a larger unit than grams. When we have to go from a smaller unit to a larger unit we use division.

So,

Given

28.3 grams = 1 ounce

Then

18\ grams=\frac{18}{28.3}=0.636=>0.64

Hence, option A 0.64 is the correct answer.

Keywords: Conversions, Units of measurement

Learn more about conversions at:

  • brainly.com/question/11207748
  • brainly.com/question/13063819

#LearnwithBrainly

8 0
3 years ago
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