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jarptica [38.1K]
3 years ago
10

A scientist places 7.35 grams of a radioactive element in a dish. The half-life of the element is 2 days.After d days, the nimbe

rs of geams of the element remainjng in the dis is given by the function R(d)=7.35(1/2) d/2. which statement are true about the equation ehen it is rewritten witjoit a fractional exponent. answer
Mathematics
1 answer:
andrezito [222]3 years ago
3 0

Answer:

7.35

Step-by-step explanation:

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Pls help i need this asap
Zielflug [23.3K]

Answer:

Let x = # of commercials

      y = # of movies

<u>System of Equations:</u>

x + y = 90

40x + 110y = 500

Step-by-step explanation:

We have to set our variables before we start solving. After setting the variables, we can set up the equations. If x = # of commercials and y = # of movies, then we can assume x + y = 90, as there have been a total of 90 commercials and movies played altogether. Then, we know that their worth is $500, so the price of all the commercials played and the price of all the movies played (which is 40x + 110y) sum to $500.

8 0
2 years ago
If n + 10 = 45.5, then what is the value of the expression n - 25?
Citrus2011 [14]

Answer: 90

Step-by-step explanation:

45.5-.5=45

45^2=90

8 0
3 years ago
The number of turtles in a pond is four more than twice the number of crocodiles.
cluponka [151]

twice the number is multiplying

 so it would be 2c then add 4 more

 so 2c+4 is the correct equation.

 Answer is B

3 0
3 years ago
Read 2 more answers
IN 2013 The number of students in a small school is 284. it is estimated that the student population will increase by 4% every y
Aleks [24]

Answer:

Amount = Initial value × (1 + rate of interest)^years and 374

Step-by-step explanation:

The formula to determine the student population and the estimated student population is given below:

As we know that

Amount = Initial value × (1 + rate of interest)^years

= 284 × (1 + 0.04)^7

= 284 × 1.04^7

= 373.72

= 374

7 0
3 years ago
Vince has a dog washing business .he washed 8 dogs and earned a total of 119.92 how much doe he charge per dogs?
slava [35]

Answer:

14.99

Step-by-step explanation:

119.92/8

8 0
4 years ago
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