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viva [34]
2 years ago
14

I need help :( (please explain how you got your answer too)

Mathematics
1 answer:
ch4aika [34]2 years ago
6 0

Answer:

a. fly = 5.7

b. fly = 7.5

Step-by-step explanation:

a.

hoist/fly = 1 / 1.9

The new hoist is 3. To get this you have to multiply 1 by 3. That means you have to multiply 1.9 by 3 too.

1.9 * 3 = 5.7

b.

hoist/fly = 3/5 (this is the new ratio)

4.5 / 3 = 1.5

5 * 1.5 = 7.5

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Step-by-step explanation:

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2 years ago
Which expressions are equivalent to −6+3(2+(−4t))
nekit [7.7K]

Answer:

-6+12t

Step-by-step explanation:

- 6 + 3(2 + ( - 4t)) \\  =   - 3(2 + ( - 4t)) \\  =  - 6 + 12t

3 0
3 years ago
, 8 technicians can test 560 samples in 36 hours. How long
Yakvenalex [24]

Answer:

0.75 days (im a bit unsure but i tried my best, hope this helps :) )

Step-by-step explanation:

If it takes 8 technicians 36 hours to test 560 samples, find how many technicians can test 525 samples.

8: 560

x: 525

x= 7.5 (which is considered 7)

Then, find how long it takes to sample 525 samples, when 560 are done in 36  hours;

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525: x

x= 33.75 (which is considered 34 hours)

The last step is to check how long 15 technicians take to sample 525 samples when 8 can do the same number in 34 hours. this is inverse proportion so dont forget to flip one numerator and denominator

8; 34

15; x

it will become

15:34

8: x

x= 18 hours

Divide by 24 for days hence 0.75 days

5 0
3 years ago
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Step-by-step explanation:

I HOPE IT WAS HELPFUL TO U !!

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Read 2 more answers
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