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arlik [135]
3 years ago
12

How do you decide if a decimal is a rational number

Mathematics
1 answer:
prisoha [69]3 years ago
3 0
Decimals that ends is rational
For example 8.45 not 8.7483883...
Also decimals that repeats in a pattern
For example 8.45454545...
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Please answer correctly!! Will mark brainliest!!!
VLD [36.1K]

Answer:

<em>Hello There the correct answer D. (4-1) -3</em>

<h2> Explanation</h2>

Because All you really need to divide and that how you really get the answer. Hope it helps!

8 0
4 years ago
Read 2 more answers
Jenna and her 2 sisters want to take a camping trip. they have $125 saved. each of them will save $24 a week until they have $42
Alexxandr [17]

Answer:

After 4 weeks they have $413

After 5 weeks they have $485 (more than enough money)  

Step-by-step explanation:

we know that here are 3 people saving up this money and we know that they have already saved 125 dollars.

if each saves $24 per week... 24*3=72 (total profit per week)

for 4 weeks... 72*4=288

288+125(already saved up)= 413

If they go one more week and save up another 72 dollars in 1 week this will bring them past their goal

7 0
4 years ago
When p = 12, t = 2, and s = 1/6, r = 18. If r varies directly with p and inversely with the product of s and t, what is the cons
Ilia_Sergeevich [38]
R = kp/st
18 = 12k/(1/6 x 2)
18 = 12k/(1/3)
18 = 36k
k = 18/36 = 1/2

3 0
3 years ago
The number of bacteria in a certain population increases according to an exponential growth model, with a growth rate of 3.5% pe
uysha [10]
Generic exponential growth model: y = Ao[1+r]^t

In this case: r = 3.5% = 0.035

y = 2Ao .....[the double of the initial value]

Then: 2Ao =Ao (1 + 0.035)^t

(1.035)^t =2

Take logarithm to both sides

t ln(1.035) = ln(2)

t = ln(2) / ln(1.035) = 0.693 / 0.0344 = 20.15

Answer: 20.15 hours.




3 0
4 years ago
240hours equals how many days and how many hours
aliina [53]
24 hours in a day
240 hours = 10 days
6 0
3 years ago
Read 2 more answers
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