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damaskus [11]
3 years ago
7

Which equation has a constant of proportionality equal to 0.25

Mathematics
1 answer:
laila [671]3 years ago
5 0

Answer: y = 1/4x

Step-by-step explanation:

If the constant of proportionality is K, then:

y = kr

In which equation do we multiply x by 0.25 to get y?

1/4 = 0.25

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<em>Working together</em>, decorating 16 dozens of cookies will take 103 minutes.

<u>Let's calculate theor individual work rate</u> :

  • Rate = 1/ time

Felix's rate = 1/90

Oscar's rate = 1/120

Combined rate = 1/90 + 1/120 = (4 + 3) / 360 = 7/360

<u>Time taken for both of the to decorate 8 dozens</u> :

Reciprocal of their combined rate = 1 ÷ (7/360) = 51.428571 minutes

<u>Hence, the time taken to decorate 16 dozens will be</u> :

(16/8) × 51.428571 = 102.857 = 103 minutes (nearest while number).

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3 years ago
I need help with this question ​
Roman55 [17]

Answer:

3 and 4 are complementary because they both add up to 90

Step-by-step explanation:

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3 years ago
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The ratio of Ds to As in the school was 4 to 72. If there were 1080 As in the school this term, how many Ds were there?
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