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ddd [48]
3 years ago
11

18. The half-life of a radioactive isotope is 7 years.

Mathematics
2 answers:
lutik1710 [3]3 years ago
6 0

Answer:

100(0.5)^X/7

Step-by-step explanation:

That is how you would put it ;)

maxonik [38]3 years ago
4 0

Answer:

i’m not sure

Step-by-step explanation:

i’m not sure

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The area of a rectangle may be determined by using the formula A = lw, where "A" stands for area, "l" stands for the length of t
JulsSmile [24]

Answer:

The area is 15 cm^2.

Step-by-step explanation:

Step 1: Start with the given formula.

Step 2: Then replace l and w with the given measures.

Step 3: Then do the calculation.

Step 1: A = lw

Step 2: A = (3 cm) * (5 cm)

Step 3: A = 15 cm^2

Answer: The area is 15 cm^2.

6 0
2 years ago
Evaluate the expression when x=20, y=4, and z=7. 3z+8
Finger [1]

Answer:

3z+8

3(7)+8

21+8

29 is your answer ☺️☺️☺️

3 0
3 years ago
Read 2 more answers
Please help me!!!!!!!!:(
horsena [70]

Answer:

24% chance

Step-by-step explanation:

First, find the total number of graduates in the table, that number is 2610, that will be your numerator.

You will look at the table for the total number of students, that is 10730, that will be the denominator.

Now divide the smaller number/numerator (2610) by the larger number/denominator (10730)

\frac{2610}{10730} = 0.2432432...

Then, multiply by 100 to get the percentage: 24.32432...%

Now, round to the nearest percentage: 24%


7 0
3 years ago
Keith bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $150 more than the desktop. He pa
ss7ja [257]

Answer: desktop = $1750, laptop = $1900

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

Let x represent the cost of the desktop

then x + 150 is the cost of the laptop.

.07x + .055(x + 150) = 227

.07x + .055x + 8.25 = 227

.125x = 218.75

x = 1750

desktop (x) = $1750

laptop (x + 150) = $1750 + $150 = $1900

5 0
3 years ago
A bag of potatoes weights 30 lb. If 74% of a potato is water, how many pounds of water are there in the bag?
Nadya [2.5K]

Answer: There are 22.2 pounds of water in the bag.

Step-by-step explanation:

Hi, to answer this question we simply have to multiply the total weight of the bag by the water percentage in decimal form (divided by 100).

Mathematically speaking:

30 x (74/100) = 30 x 0.74 =22.2 pounds

There are 22.2 pounds of water in the bag.

Feel free to ask for more if needed or if you did not understand something.

3 0
2 years ago
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