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galben [10]
3 years ago
14

Robert climbed 775 steps in 12 1/2 minutes. How many steps did he average per minute

Mathematics
1 answer:
Archy [21]3 years ago
6 0
775 steps across 12.5 minutes = 775/12.5 = 62 steps per minute
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ra1l [238]

Answer:

D. 6

Step-by-step explanation:

the similarity theorem:

x/9 = 8/12

12x=8 (9)

12x = 72

x = 72/12

x = 6

8 0
2 years ago
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Which of the following statements are true? Select all that apply.
Tom [10]

Answer: The statements in options 2 and 4 are true.

Explanation:

The LCM of two numbers is the smallest number that is multiple of both numbers.

The factor of 8 and 12 are,

8=2\times 2\times 2

12=2\times 2\times 3

Since 2 and 2 are common in both but 2 and 3 are not same, therefore the L.C.M. of 8 and 12 is,

L.C.M.(8,12)=2\times 2\times 2\times 3=24

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The factor of 6 and 9 are,

6=2\times 3

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Since 3 is common in both but 2 and 3 are not same, therefore the L.C.M. of 6 and 9 is,

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Therefore the statement in option 2 is correct.

The factor of 11 and 4 are,

11=1\times 11

4=2\times 2

Since all factor are different, therefore the L.C.M. of 11 and 4 is,

L.C.M.(11,4)=1\times 11\times 2\times 2=44

Therefore the statement in option 3 is incorrect.

The factor of 9 and 10 are,

9=1\times 9

10=2\times 5

Since all factor are different, therefore the L.C.M. of 9 and 10 is,

L.C.M.(9,10)=1\times 9\times 2\times 5=90

Therefore the statement in option 4 is correct.

4 0
3 years ago
Here is the Math problem.
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Answer:

Workup in photo below.

Step-by-step explanation:

Good luck.

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Step-by-step explanation:

A(promotional sign)b

A=kb

4=21k

K=0. 1904

A=0. 2b

A=0. 2×7

A=1. 4

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3 years ago
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What is the product
kakasveta [241]
The product of the answer is 3a.
3 0
3 years ago
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