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Reptile [31]
3 years ago
5

Help me please with this question

Mathematics
1 answer:
docker41 [41]3 years ago
6 0

Answer:

P=152

A=79

Step-by-step explanation:

add all the sides

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If you can walk 5.3 miles in 2.5 hours, how many minutes does it take to walk 3.18 miles? Round to 1 decimal.
Oksana_A [137]

Answer:

90min

Step-by-step explanation:

we can solve the first part by means of the rule of three:

5.3miles ----2.5 hour

3.18miles----x

then

x=\frac{3.18*2.5}{5.3} \\x=\frac{7.95}{5.3} \\x=1.5 hours

Now we must convert hours to minutes:

1.5 hours = 1.5hours (1)

1.5 hours =1.5 hours \frac{60min}{1 hours}

1.5 hours =(1.5)(60) min

1,.5 hours =90min

7 0
3 years ago
Find the total area for the regular pyramid. T.A. xxx(sqr) + xx (sqr)x
N76 [4]
We are to solve the total area of the pyramid and this can be done through area addition. We first determine the area of the base using the Heron's formula.
                           A = √(s)(s - a)(s - b)(s - c)
where s is the semi-perimeter
                                 s = (a + b + c) / 2
 Substituting for the base,
                               s = (12 + 12 + 12)/ 2 = 18
                          A = (√(18)(18 - 12)(18 - 12)(18 - 12) = 62.35
Then, we note that the faces are just the same, so one of these will have an area of,
                                s = (10 + 10 + 12) / 2 = 16
                                  A = √(16)(16 - 12)(16 - 10)(16 - 10) = 48
Multiplying this by 3 (because there are 3 faces with these dimensions, we get 144. Finally, adding the area of the base,
                          total area = 144 + 62.35 = 206.35
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3 years ago
Marcus is 1.5 meters tall. His sister is 0.1 meter taller than Marcus. Their father is 0.2 meter taller than his sister. How tal
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The answer is 1.8 m....
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3 years ago
Chelsea and her friends are going to a movie. If popcorn is $3.99 and drinks are $1.75, what is the cost of two popcorns and thr
Vika [28.1K]
Popcorn would be 7.98. Drinks would be 5.25. Togather they would be 13.23.
7 0
3 years ago
Read 2 more answers
In a certain neighborhood there are 25 dogs and 10 cats. In a neighborhood across the way, the ratio of cats to dogs is the same
Akimi4 [234]

28 because 2.5 times 8 equals 20 plus that 8 equals 28.

Step-by-step explanation:

6 0
2 years ago
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