The angles are complementary meaning they =90 degrees.
So take (x-20) and x, and write this equation,
x-20+x=90
2x-20=90
move the 20 over
2x-20=90
+20 +20
2x=110
x=55.
You can check it by plugging it back in,
(55-20)=35
and
x=55
35+55=90.
Thus, you know your answer is correct.
Answer:
Step-by-step explanation:
20 kg bag of bananas for 10 dollars
This is the given situation in which in every 20 kilogram of bananas, the costs is 10 dollars.
Now, let us calculate how much each kg of banana costs will. Let’s solve for the unit rate of this given data:
=> 20 kg bag of banana
=> 10 dollars = cost
Now, let’s divide this to get the answer that we need.
=> 20 / 10
=> 2 bananas per dollars = 2 banana/dollars
Or 10 / 20
=> 0.5 dollars/1kg of banana
88
Cause I fully don’t know
Answer:
A bicycle store installs about 400 tires per day. Tires are installed Monday through Friday for 8 hours per day. The owner of the store estimates the number of properly installed tires per week using the process below.
In the first hour of work on Monday, 49 out of 50 tires were properly installed.
So, there were about 8(49) = 392 properly installed tires on Monday.
Considering 5 working days per week, 5(392) = 1,960 is the number of tires properly installed in one week.
Which best explains the validity of the results?
The results are likely invalid because it is unlikely that the tires installed in one hour on Monday will represent the entire population of tires.
The results are likely invalid because the entire population during one week was not part of the sample.
<u>The results are likely valid because a large number of tires produced during the week were part of the sample.
</u>
The results are likely valid because each tire sampled was part of the population of tires that week.
Step-by-step explanation:
