<span>21,000*5
since it travels 21,000 per hour and there is five hours. it's just simple substitution.
105,000 is the correct answer.</span>
D,
You basically see if statements are correct or not. Remember this is sample, sample is portion of population so if everything is dome correctly, the results of sample will also display the results of population +- error (standard deviation). So you can just use the sample results to answer questions about the population.
A is correct because social studies has 4 students and reading has 8. Math has twice.
B is correct because reading has 2 and math has 8. Reading is one fourth of math 8*1/4 = 8/4=2.
D is NOT correct because math is 8, social studies is 4. Math is not half of social studies. Social studies is half of math.
Answer:
X Y
6. : 3
8. : 4
Step-by-step explanation:
1st...
80 * 115
P = 2 * 80 + 2 * 115
P = 160 + 230
P = 390 is the perimeter
A = 80 * 115
A = 9, 200 is the area.
I could only get the first part done for you maybe others are watching where they can help you with the second part of the question:::
Hope that helps!!!!
