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2 years ago

It take Zoe 12.5 minutes to swim 20 laps around the pool what is Zoe's unit rate

Mathematics

2 answers:

Neporo4naja [7]2 years ago

8 0

All you have to do is divide 12.5 minutes by 20 laps. $\\ \frac{minutes}{laps}= \frac{12.5}{20}=0.625 \\$

allochka39001 [22]2 years ago

6 0

1.6 min. per lap
All you have to do is divide 20 by 12.5

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aflati masurile a doua unghiuri complementare stiind ca masura unuia dintre ele este cu 18° mai mica decat triplul masurii celui

Ahat [919]

Answer:

The angle is "27 and 63".

Step-by-step explanation:

Let A and B are two angles, in which A is " $\frac{1}{2}$ " complementary angles and B be is another complementary angle.

Condition of complementary angle :

$A+B =90 ......(i)$

Solution:

$\ A = \ 3B - 18 \\\\ \ put \ the \ value \ of \ A \ in \ equation.....(i) \\\\ \ Equation: \\ \\\Rightarrow \ A\ +\ B \ =\ 90 \\\\\Rightarrow \ 3B\ -\ 18 \ + \ B \ = \ 90 \\\\\Rightarrow \ 4B \ = \ 90 +18 \\\\\Rightarrow \ 4B = 108 \\\\ \Rightarrow B = \frac{108}{4} \\\\ \Rightarrow B \ = \ 27\\$

$\ put \ the \ value \ of \ B \ in \ equation (i).\\\\ \ Equation: \\\\\Rightarrow A+B=90\\\\\Rightarrow A+27=90\\\\\Rightarrow A=90-27\\\\\Rightarrow A= 63$

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Stolb23 [73]

Decimal fractions don't exist. Do you mean convert to a decimal and a fraction?

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Katena32 [7]

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Answer B.

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2 years ago

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