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2 years ago

If Kelly read 1/4 of her book and Scott read 1/5 of his book who read more pages in there book

Mathematics

2 answers:

Tcecarenko [31]2 years ago

7 0

Answer:

Kelly

Step-by-step explanation:

Kelly read more pages in her book because 1/4 is greater than 1/5

marissa [1.9K]2 years ago

7 0

Answer:

Kelly

Step-by-step explanation:

1/4 is more than 1/5

u can convert it to a decimal if u want to see numbers out of 100

1/4= 0.25

1/5= 0.20

0.25 is more than 0.20

hope this helps chu <3

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Student/dashboard/home

DIA [1.3K]

Answer:

multiply by 2

Step-by-step explanation:

5x2=10

10x2=20

8 0

3 years ago

Read 2 more answers

Two partners are starting a wedding planning business. The total investment is $45,000. Their investments are in the ratio 4:5.

JulijaS [17]

Answer:

Hey there!

Think of 45000 being split to 9 pieces.

Each piece would be 5000 dollars.

Thus, the ratio would be 20000 to 25000

Hope this helps :)

7 0

3 years ago

Number 6,8, and 10.

Aliun [14]

I think number 10 is 4/9

6 0

3 years ago

Dinosaur fossils are often dated by using an element other than carbon, like potassium-40, that has a longer half life (in this

Firlakuza [10]

The amount of substance left of a radioactive element of half life, $t_{\frac{1}{2}}$ after a time, t, is given by:

$N(t)=N_0\left( \frac{1}{2} \right)^ \frac{t}{t_{ \frac{1}{2} }}$

Given that <span>potassium-40 has a half life of approximately 1.25 billion years.

The number of years it will take for 0.1% of potassium-40 to remain is obtained as follows:

$0.1=100\left( \frac{1}{2} \right)^ \frac{t}{1.25}} \\ \\ \Rightarrow\left( \frac{1}{2} \right)^ \frac{t}{1.25}}=0.001 \\ \\ \Rightarrow\frac{t}{1.25}\ln\left( \frac{1}{2} \right)=\ln(0.001) \\ \\ \Rightarrow \frac{t}{1.25}= \frac{\ln(0.001)}{\ln\left( \frac{1}{2} \right)} =9.966 \\ \\ t=9.966(1.25)=12.5$

Therefore, </span><span>the maximum age of a fossil that we could date using 40k is 12.5 billion years.</span>

3 0

3 years ago

Growth or decay, and determine the percentage rate of increase or decrease.

NNADVOKAT [17]

The expression y = 660(0.902)ˣ represents a decay , the rate of decrease is 9.8% .

In the question ,

it is given that ,

the the exponential function is y = 660(0.902)ˣ

we need to determine that , the equation represents a growth or decay .

0.902 is the variable that will determine a growth or decay .

Since, 0.902 is less than 1 , so it represents a decay function .

To find the rate we subtract 0.902 from 1

= 1 - 0.902

= 0.098

= 9.8% decrease rate

Therefore , The expression y = 660(0.902)ˣ represents a decay , the rate of decrease is 9.8% .

The given question is incomplete , the complete question is

Identify if it's Growth or Decay , and determine the percentage rate of increase or decrease , the function is y = 660(0.902)ˣ ?

Learn more about Growth and Decay here

brainly.com/question/22392518

#SPJ1

4 0

1 year ago