Hiroshi did 30 minutes history, 60 minutes English, and x minutes of math.
If we add all of these values together we would have he total amount of homework he did is 30 + 60 + x minutes.
One fourth of his total time is spent on math so...let's just take 1/4 of that total amount!
a. 1/4(x + 30 + 60) = x
Answer:
2.4 miles per hour
Step-by-step explanation:
Answer:
307 to 323 blocks
Step-by-step explanation:
The range of allowable number of blocks for a building set is the minimum numbers of blocks in a set to the maximum number of blocks in set that would not cause the set to be sent back. Since the ideal number 315 pieces and the allowed deviance is 8 blocks less or more, the allowable range is:
315 - 8 ≤ N ≤ 315 +8
307 ≤ N ≤ 323.
The range of allowable number of blocks for a building set is 307 to 323 blocks.
Answer:
a. an = -1 • 4^(n - 1)
Step-by-step explanation:
It's easy see that each term is multiplied by 4 to get the next term, so the common ratio will be 4, that reduces the choices to answers A and B (since C and D use -1 as common ratio). Also, normally a geometric progression uses "n-1", so we'll first try with A to see if it works.
a1 = (-1) * 4^0 = -1 * 1 = -1
a2 = (-1) * 4^1 = -1 * 4 = -4
a3 = (-1) * 4^2 = -1 * 16 = -16
Yes, it works... so the answer is an = -1 • 4^(n - 1)
Point slope or standard form? Standard is y=0-+1, point is y=1
