All categories

3 years ago

Solve asap I'll mark brainliest

Mathematics

2 answers:

Angelina_Jolie [31]3 years ago

8 0

Answer:

13/21 - 3/7 = 4/21

Step-by-step explanation:

the value of s is 4/21

diamong [38]3 years ago

5 0

Answer:

s = 4/21

Step-by-step explanation:

Move all terms not containing s to the right side of the equation, then solve.

You might be interested in

Ella's grandmother sewed her a change purse. When she gifted it to her, Ella counted 23 coins already in it. Ella noticed there

juin [17]

The answer to this problem is 17dimes

5 0

3 years ago

Read 2 more answers

How do you express your terms in pi

il63 [147K]

Answer:

To express your answer in terms of pi, simply refrain from substituting pi's numerical value for its symbol in the equation. That way, your answer will look like xπ where x is whatever number you come up with, and π is simply a placeholder.

4 0

3 years ago

Read 2 more answers

Assume you have such a watch. if a minimum of 18.0% of the original tritium is needed to read the dial in dark places, for how m

laila [671]

Given that the half life of 3H is 12.3 years.

The amount of substance left of a radioactive substance with half life of $t_{ \frac{1}{2} }$ after t years is given by

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

Therefore, the number of years it will take for 18% of the original tritinum to remain is given by

$18 \% = 100 \% \left(\frac{1}{2} \right)^{ \frac{t}{12.3}} \\ \\ \Rightarrow\left(\frac{1}{2} \right)^{ \frac{t}{12.3}} =0.18 \\ \\ \Rightarrow\frac{t}{12.3}\ln\left(\frac{1}{2} \right)=\ln0.18 \\ \\ \Rightarrow\frac{t}{12.3}= \frac{\ln0.18}{\ln\left(\frac{1}{2} \right)} = \frac{-1.715}{-0.6931} =2.474\\ \\ \Rightarrow t=2.474(12.3)=30.4$

Therefore, the number of <span>years that the time could be read at night is 30.4 years.</span>

5 0

3 years ago

Estimate the quotient 430 divided by 9

adell [148]

Answer:

47.77778 but really it's just 47

4 0

3 years ago

The local movie theater reported loses of $175 each day for three days. What was the loss for the fourth day?

laila [671]

Answer: $700
explanation: they lost 175 EACH DAY
so 175 x 3 = 525
add another 175 for the fourth day
525 +175 = 700
They lost a total of $700 on the fourth day.

5 0

3 years ago

Solve asap I'll mark brainliest​

Solve asap I'll mark brainliest