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Wewaii [24]
3 years ago
8

Abigail is using blocks to build a tower. The blocks are 3 inches, 4 inches, and 8 inches tall. She has stack 3 blocks. How many

different heights are possible for the tower?
Mathematics
1 answer:
ohaa [14]3 years ago
5 0

9514 1404 393

Answer:

  10

Step-by-step explanation:

Possible tower heights using 3 blocks are ...

  {9, 10, 11, 12, 14, 15, 16, 19, 20, 24}

There are 10 different heights possible.

_____

Each block can be used 1, 2, or 3 times.

Using a 3 in block as the smallest, we have ...

  3+3+3 = 9

  3+3+4 = 10

  3+3+8 = 14

  3+4+4 = 11

  3+4+8 = 15

  3+8+8 = 19

Using a 4-in block as the smallest, we have ...

  4+4+4 =12

  4+4+8 = 16

  4+8+8 = 20

And ...

  8+8+8 = 24

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Answer:

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3 years ago
Alice, Bob, and Carl arrange to meet for lunch on a certain day. They arriveindependently at uniformly distributed times between
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Answer:

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Assuming that Carl arrived on time, 1:10 PM, we must determine the probability that Alice or Bob arrive between 1:20 and 1:30 (half the remaining time)

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c. What is the probability that Carl will have to wait more than 10 minutes for both of the others to show up?

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d. What is the probability that the person who arrives second will have to wait more than 5 minutes for the third person to show up?

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P (|S - T| ≤ ¹/₄) = {[(x + ¹/₄)²] / 2} + (1 / 2x) + {[(⁵/₄ - x)²] / 2} = 0.09375 + 0.25 + 0.09375 = 0.4375 = 43.75%

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3 years ago
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2 years ago
The initial volume of water in a certain pond is 2,000 m3. Each day 0.5 m3 is drained from the pond.
Alborosie

Answer:

Option A The volume of water in the pond after x days

Step-by-step explanation:

Let

y ------> the volume of water in the pond  

x -----> the number of days

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