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MAVERICK [17]
3 years ago
7

20=2w w= plz help im giving good

Mathematics
2 answers:
REY [17]3 years ago
6 0

Answer:

w=10

Step-by-step explanation:

divide both sides by 2 to get the variable by itself.

w=10

make me brainliest

ololo11 [35]3 years ago
5 0
W= 10
divide both sides by 2 to get you variable
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the probability of rolling a 1 on a 6 sided biased dice is 0.85 the biased dice is rolled twice. complete the probability tree d
dangina [55]

Answer:

Aswer is 1.32

Step-by-step explanation:

1 divided by 0.85= x times y=1.32

4 0
3 years ago
chang reads 9 3/4chapters in 4 1/2 hours. what is the unit rate in chapters per hour? write your answer as a fraction or a mixed
snow_lady [41]

Answer:

2 1/6 chapters per hour

Step-by-step explanation:

Find the unit rate, as follows:

   9.75 chapters

 ----------------------- = 2.166666 ... chapters per hour, or

     4.5 hours                            2 1/6 chapters per hour

3 0
3 years ago
8. A substance has a half life of 2.347 minutes.
mina [271]

Answer:

a.) 4 half lives have passed

b) 9.388 minutes

Step-by-step explanation:

Formula for exponential growth / decay is given as:

A=A_0b^{\frac{t}{c}}

Where A is the final population

A_0 is the initial population

b is the growth factor

c is the time taken for the growth 'b'

t is the amount of time

Here, we are given that:

A = 6. 9 grams

A_0 = 110.4 grams

b = \dfrac{1}{2}

c = 2.347 min

To find:

a.) Number of half lives taken for the decay.

b.) Total time in the decay.

Solution:

a.) Number of half lives taken for the decay is nothing but equal to \frac{t}{c}.

Putting the values in the formula, we get:

6.9=110.4\times \frac{1}2^{\frac{t}{c}}\\\Rightarrow 6.9=110.4\times 0.5^{\frac{t}{c}}\\\Rightarrow 0.0625=0.5^{\frac{t}{c}}\\\Rightarrow \dfrac{t}{c} =4

Therefore, the answer is:

<em>4 half lives </em>have passed.

b.) Total time of decay. We have to find the value of t here.

From answer of part a.):

\dfrac{t}{c} =4\\\Rightarrow \dfrac{t}{2.347} =4\\\Rightarrow t =\bold{9.388\ min}

7 0
3 years ago
What is the slope of this line? Need Help ASAP​
Jobisdone [24]

Answer:

The slope of a horizontal line is 0.

If the line was verticle it would have an undefined slope.

6 0
3 years ago
Read 2 more answers
This too!! Once again, thank you!
Volgvan

Answer:

For question 3, the slope would be -5

Step-by-step explanation:

If you wanted to graph this you would have to plot one of the points that is already given. Then from that point, you would move 5 units down and 1 unit to the right. If you run out of space, you can go to the other direction by going 5 units up and 1 to the left.

Hope this helps :)

8 0
2 years ago
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