PLEASE HELP!!!!!!

If 6 pipes fill a tank in 120 minutes, then 5 pipes can fill it in how many minutes

Marianna [84]

Answer:

It'll take 144 minutes for 5 pipes.

Step-by-step explanation:

${ \sf{6 \: pipes = 120 \: mins}} \\ { \sf{5 \: pipes = ( \frac{6}{5} \times 120) \: mins}} \\ \\ = { \sf{144 \: mins}}$

but practically, it seems to be abnormal. if 6 pipes take 120 mins, 5 pipes must takes a time greater than 120 mins cause amount of water flowing to the tank is decreasing.

But there is a possibility that pressure of water was increased for the case of five pipes, that's why it takes a time less than 120 mins. (t < 120)

5 0

2 years ago

Read 2 more answers

Answer three questions for 11 points

Ksenya-84 [330]

3. A 2.b 1.a i think if this is correct then I hope this helps

8 0

2 years ago

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Write the prime for factorization of 4

faust18 [17]

Answer:

2×2 mark me brainlist

4
divided by 2
2×2

4 0

1 year ago

Can someone help :(!

Andru [333]

Answer:

1/(t+4)²

Step-by-step explanation:

$\dfrac{t+3}{t+4}\div(t^2+7t+12)=\dfrac{t+3}{t+4}\cdot\dfrac{1}{(t+3)(t+4)}=\dfrac{(t+3)}{(t+3)(t+4)^2}\\\\=\boxed{\dfrac{1}{(t+4)^2}}$

5 0

2 years ago

A physician orders penicillin 525,000 units q4h for a child who weighs 55 lbs. The recommended dosage is 100,000 250,000 units/k

Nitella [24]

Answer:

a. 24.9476 Kg.

b. The safe daily dosage range is between 2494760 units /day and 6236900 units/day

c. Yes

Step-by-step explanation:

a. Lets see the convertion from lb to Kg:

1 Lb= 0.453592
55 lb = 0.453592*55= 24.9476 kg

b. Minimum daily dosage is 100,000 units /kg

For this kid: 100,000 * 24.9476= 2,494,760 units/ day

in 6 dosis; 2494760/6= 415,793.33 units every 4 hours

Maximun daily dosage is 250,000 units /kg

For this kid: 250,000 * 24.9476= 6,236,900 units/ day

in 6 dosis; 6,236,900/6= 1,039,483.33 units every 4 hours

c: Yes, because 525.000 units every 4 hours is between the minimun and maximun dosaje for this kid

4 0

2 years ago