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Roman55 [17]
4 years ago
11

Once each day, Darlene writes in her personal diary And records what is the sun is shining or not. When she looked back through

her diary, she found that over a period of 600 days, the sun was shining 60% of the time. She kept recording for another 200 days and then found that the total number of sunny days drop to 50%. How many of the final 200 days for sunny days?
Mathematics
1 answer:
Deffense [45]4 years ago
8 0
For the initial 600 days the sun was shining for a total of 360 days. This can be found by converting the percentage to a decimal by dividing its value by 100 and then multiplying that value by the initial total number of days shining. 

(60/100) x (600) = 360 days

She then observes the sun for an additional 200 days increasing the total amount of days from 600 to 800. As a result the percentage of sunny days drops from 60% to 50%. To help solve the problem you have to determine what 50% of the new total amount of days is. 

(50/100) x 800 = 400 days 

Lastly to determine how many of the days during the final 200 days were sunny subtract the number of sunny days from the first equation from the second. 

400 days - 360 days = 40 days 

This means that 40 of the final 200 days were sunny. 
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I'm really stuck on these types of equations, can someone please help me solve this
guapka [62]
I just answered this question :) 
If you any help on any others, just send me a message. 
Or comment below.
The explanation is the image attached. 

8 0
3 years ago
What is Y=6x-6 and -3x-3y=-24<br> System of substitution
alekssr [168]

Answer:

x = 2

y = 6

Step-by-step explanation:

y= 6x - 6

-3x- 3y= -24

to find the value of x:

- 3x - 3 (6x - 6)= -24

- 3x - 18x + 18= -24

-21x + 18 = -24

-21x= -42

<u>x = 2</u>

Now, to find the value of y:

(substitute x into the equation)

y = 6 x - 6

y = 6 (2) - 6

y = 12 - 6

<u>y = 6</u>


5 0
4 years ago
How did British scientists test Einstein theory of relativity
Stolb23 [73]

Answer: Arthur Stanley Eddington's 1919 expedition confirmed Einstein's prediction for the deflection of light by the Sun during the total solar eclipse of 29 May 1919 which helped to cement the status of general relativity as a true theory. Since then many observations have confirmed the correctness of general relativity.

Hope this helps. Also gimme brainliest.

8 0
3 years ago
Hobbs Mules charges $80 for a 2-hour mule ride and $144 for a 4-hour mule ride. The table down below shows how much McGee Mules
Nataliya [291]

Answer: If a group wants to take a 3 hour ride they should choose Hobbs Mules.

Step-by-step explanation:

First figure out how much a 3 hour ride at McGee Mules would cost. Do this by setting up a proportion, then solving it.

Numerator = Time       Denominator = Cost

\frac{1}{42} = \frac{3}{x}  42 x 3 = 126/1 = 126  So a 3 hour ride with Mcgee should cost $126.

Next figure out how much a 3 hour ride at Hobbs Mules would cost by doing the same thing.

\frac{2}{80} = \frac{3}{x}   80 x 3 = 240/2 = 120  So a 3 hour ride with Hobbs should cost $120.

In conclusion, The group should choose Hobbs because they price is $6 cheaper.

8 0
3 years ago
Use the figure below. Solve for x
Svetllana [295]

Answer:

x = 60 degrees

Step-by-step explanation:

we know x+(2x)=180

so, then we get 3x=180

x = 180/3

x = 60

5 0
3 years ago
Read 2 more answers
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