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Irina:
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Irina takes 7 hours to paint the room.
In 1 hour, Irina can paint 1/7 of the room.
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Paulo:
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Paulo takes 6 hours to paint the room.
In 1 hour, Paulo can paint 1/6 of the room.
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Both paint together:
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In one hour they can paint (1/7 + 1/6) of the room.
1/7 + 1/6 = 13/42
So, it takes 13/42 of the room takes 1 hour.
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Find the number of hours
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13/42 of the room = 1 hour
Whole room = 1 ÷ 13/42
Whole room = 1 x 42/13
Whole room = 3.23 hours
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Answer: They need 3.23 hours to paint the room.
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Answer: C) Response variable
The independent variable (the one the researcher has control over) is the explanatory variable.
Answer:
The identity property of one states that <u>any number multiplied by 1 keeps its identity.</u> In other words, any number multiplied by 1 stays the same. The reason the number stays the same is because multiplying by 1 means we have 1 copy of the number. For example,
32x1=32.
Answer:
If the table is showing what soda those surveyed like then the answer is 24
Step-by-step explanation:
A total of 33 boys were surveyed, 9 like Dr. Pepper.
33-9=24
1/3x+2 or x=1.5 depends on if u have to find x itself
