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iVinArrow [24]
2 years ago
7

If 14:15=42:x find the value of x​

Physics
2 answers:
Scrat [10]2 years ago
6 0
Answer:
45

Solution: you can use the above method or you can cross multiply. That’s mean multiplying the numerator of the left side by the denomination of the right. And the denominator on the left by the numerator on the right (it makes an x shape). Therefore, your algebraic equation should look like this and solve for x

14x=15*42
14x=630
X=630/14
X=45
Yuliya22 [10]2 years ago
3 0

Answer:

x=45

Explanation:

by taking 42 and dividing it by 14 you get 1/3, because 14 is 1/3 of 42 you can then see that the ratio is multiplied by 3. si then you can just multiply 15 by 3 to get 45

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A disk of radius 10 cm speeds up from rest. it turns 60 radians reaching an angular velocity of 15 rad/s. what was the angular a
stepan [7]

Answer:

a) α = 1.875 \frac{rad}{s^{2} }

b) t = 8 s

Explanation:

Given:

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*side note: you can replace regular, linear variables in kinematic equations with angular variables (must entirely replace equations with angular variables)*

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2 years ago
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Answer:

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