Answer
C
Step-by-step explanation:
There are 15 students ages 4 - 11, 15 x 6.50 = 97.50
There are 12 students aged 12 - 17, 12 x 8.50 = 102
102 + 97.50 = 199.50
The lower bound is the smallest value that would round up to the estimated value. A quick way to calculate upper and lower bands is to halve the degree of accuracy specified, then add this to the rounded value for the upper bound and subtract it from the rounded value for the lower bound.
Answer: 6(u-2)+2=6u-10
Step-by-step explanation:
Then, any value of u makes the equation true.
Answer:
D
Step-by-step explanation:
= =
and
= = =
Hence expression D is equivalent
Answer: 3
Step-by-step explanation:
simply divide 1200 by 400. :)