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postnew [5]
2 years ago
8

A 2-column table with 5 rows. Column 1 is labeled Number of friends helping with entries 0, 1, 2, 3, 4. Column 2 is labeled Hour

s to build tree house with entries 20, 20 minus 20 (0.10) = 18.0, 18 minus 18 (0.10) = 16.2, 16.2 minus 16.2 (0.10) = 14.6, question mark.
Peter figures he can build the entire tree house by himself in 20 hours. He figures that each additional friend who helps him would improve the time by 10%. He created a table using the algebraic expression n – n(0.10), where n is the previous number of hours.

To the nearest tenth of an hour, how long will it take to build the tree house if 4 friends are helping?
Mathematics
1 answer:
prisoha [69]2 years ago
6 0

Answer:

x y x

Step-by-step explanation:

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Given a cube with a volume of 27 cm3, what is the volume of a square pyramid that can fit perfectly inside the cube?
VARVARA [1.3K]
27/3 = 9 cm3
the pyramid is 1/3 the volume of the cube because it fits exactly inside it
3 0
3 years ago
Express 0.6 as a fraction.
ollegr [7]

Answer: 3/5

Step-by-step explanation: Using the place value chart, we can see that the decimal 0.6 is 6 tenths. So we can write 0.6 as the fraction 6/10.

Notice however that 6/10 is not in lowest terms.

So we need to divide the numerator and the denominator by the greatest common factor of 6 and 10 which is 2.

So if we divide the numerator and denominator by 2, we get 3/5.

So 0.6 can be written as the fraction 3/5 which is in lowest terms.

Image provided showing the place value chart.

6 0
3 years ago
Read 2 more answers
Help asap please!!!!!!​
Andrews [41]

Step-by-step explanation:

[(-3 × 2 × (-4)] ÷ [-6 × 12]

[3 × 2 × -4] ÷ [-6 × 12]

[6 × -4]/[-6 × 12]

-4/(-1 × 12]

-4/-12

⅓

Option A is wrong

Option B is wrong -9/-18 = ½ not ⅓

Option C is correct = -24/-72 = ⅓

Option D is wrong = 9/-18 = -½ not ⅓

3 0
3 years ago
What is the smallest value of 122
attashe74 [19]
121.5
121.5 rounded to nearest whole number is 122 --> 121.49 rounded to the nearest whole number is 121
4 0
3 years ago
Jack drew 17hearts and 14 circles.what is the ratio of hearts to circles?<br>​
morpeh [17]

Answer:

17:14

Step-by-step explanation:

4 0
3 years ago
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