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Lyrx [107]
2 years ago
10

Pls help need this ASAP in 10 mins

Mathematics
1 answer:
galina1969 [7]2 years ago
4 0
I think it may be the 2nd one but it’s just a guess… Please don’t take my word on it though!
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Write the equation that shows 40 is 8 times more than 5
Vlad1618 [11]

Answer:

8X5=40

Step-by-step explanation:

3 0
2 years ago
6 x ____ = 9<br><br> 6 times what number equals 9
hjlf

Answer:

3/2

Step-by-step explanation:

6 * _x___ = 9

Divide each side by 6

6 x __x__ = 9

x = 9/6

Simplify

x = 3/2

3 0
2 years ago
Read 2 more answers
A bucket that weighs 4lband a rope of negligible weight are used todraw water from a well that is 80ftdeep. The bucket is filled
liq [111]

Answer:

Workdone = 3200 lb.ft

Step-by-step explanation:

We are told that the bucket is filled with 40 lb of water but water leaks out of a hole in the bucket at a rate of 0.2lb/s

Thus,

Weight of water at any given time (t) would be;

w(t) = 40 - 0.2t - - - - (1)

We are told the bucket is pulled up at a rate of 2ft/s.

Thus, height at time (t); y = 0 + 2t = 2t

Since y = 2t,

Then,t = y/2

Put y/2 for t in eq 1

Thus; w(y) = 40 - 0.2(y/2)

w(y) = 40 - 0.1y

Now, at y = 80 ft, we have;

w(80) = 40 - 0.1(80)

w(80) = 40 - 8 = 32 lb

Since 32 lbs are left, it means there is always water in the bucket.

Thus, work done is;

W = 80,0[∫(Total weight).dy]

W = 80,0[∫[(weight of rope) + (weight of bucket) + (weight of water)]dy]

W = 80,0[∫[0 + 4 + 40 - 0.1y]dy]

Integrating, we have;

W = [44y - y²/20] at boundary of 80 and 0

So,

W = [44(80) - 80²/20] - [0 - 0²/20]

W = 3200 lb.ft

8 0
3 years ago
Find the circumference of a circle with a diameter of 100 feet. Use 3.14 for TT (pi).
Charra [1.4K]
Using the formula for the circumference of a circle:
2 x 100 x 3.14=628ft
5 0
3 years ago
The monthly cost of a short term disability insurance policy varies directly as the salary of the employee. Wanda has an annual
arlik [135]

Answer: $14.85

Step-by-step explanation:

Ww can solve the question using direct proportion with the formula y = kx

where y = annual salary

x = monthly policy cost.

k = constant of proportionality

Since y = kx

38500 = 11.55k

k = 38500 / 11.55

k = $3333.33

When Randy has an annual salary of $49,500, the amount Randy expect to pay for his policy will be:

y = kx

49500 = 3333.33x

x = 49500 / 3333.33

x = 14.85

The amount that Randy expect to pay for his policy will be $14.85

8 0
2 years ago
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