Answer:
it's B.) 8
Step-by-step explanation:
the given pair of angles are <em>corresponding</em><em> </em>angles so, their measures are equal.
=》15x + 10 = 17x - 6
=》10 + 6 = 17x - 15x
=》2x = 16
=》x = 16 ÷ 2
=》x = 8
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:
Answer:
D. 200
Step-by-step explanation:
Laticia doing her survey on a sample that has a size of about 25% of the population. That means the sample is approximately four times larger than the sample she takes. Unless its ratio or percentage, any data she takes will be 1/4 of the population. If 51 student of her sample choose summer as their favorite, predicted number on the population will be:
51 * (100%/25%)=
51 * 4= 204
The number will be around 200.
Answer:
1/3 of 36 is 12
Step-by-step explanation:
Distance travelled must be equal to fuel conserved in travelling per litre
distance=9 1/2*25.2
=19/2*25.2
=239.4 miles
