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vovikov84 [41]
3 years ago
5

Greg worked 7 hours on Friday and earned an additional $40 in tips. Then he worked 6 hours on Saturday and earned an additional

$35 in tips. Greg earns d dollars each hour that he works. Write a simplified expression for the total amount of dollars that Greg earned.
Mathematics
2 answers:
mars1129 [50]3 years ago
8 0
Greg worked 7 hours on Friday and earned an additional $40 in tips. Then he worked 6 hours on Saturday and earned an additional $35 in tips. Greg earns (d) <span>dollars each hour that he works.</span>

7d + 40 + 6d + 35 &#10;

13d + 75
andre [41]3 years ago
7 0
7d + 40 + 6d + 35 =
13d + 75 <== simplified
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3 years ago
A bucket that weighs 5 lb and a rope of negligible weight are used to draw water from a well that is 60 ft deep. The bucket is f
mestny [16]

Answer:

The value is W= 2640 \  ft \cdot lb

Step-by-step explanation:

From the question we are told that

The weight of the bucket is F =  5 lb

The depth of the well is x_1 =  60 \ ft

The weight of the water is W_w  =  42 lb

The rate at which the bucket with water is pulled is v  = 1.5 \  ft/s

The rate of the leak is r = 0.15 lb/s

Generally the workdone is mathematically represented as

W =  \int\limits^{x_1}_{x_o} {G(x)} \, dx]

Here G(x) is a function defining the weight of the system (water and bucket ) and it is mathematically represented as

G(x) =  F  +  (W_w- Ix)

Here I is the rate of water loss in lb/ft mathematically represented as

I  = \frac{r}{v}

=> I  = \frac{0.15 }{1.5 }

=> I  = 0.1

So

G(x) =  5  +  (42- 0.1x)

=> G(x) =  47- 0.1x)

So

W =  \int\limits^{60}_{0} {47- 0.1x} \, dx]

=> W =  [47x - \frac{0.1x^2}{2} ]|\left 60} \atop {0}} \right.

=> W= [47(60) - 0.05(60)^2]

=> W= 2640 \  ft \cdot lb

7 0
3 years ago
A furniture company is ordering screws. The company uses 37 screws to make each table and 14 screws to make each chair. The comp
Firdavs [7]

Answer:

1,400 screws

Step-by-step explanation:

You need 1,1116 screws so 1,400 screws is the right amount.

8 0
2 years ago
Read 2 more answers
Isabelle has a five-sided chicken coop in her yard. each side has an equal length. what is the total perimeter of the chicken co
Alik [6]

The total perimeter of the chicken coop if the length of one side is 3√5 yards is; 15√5 yards.yards

<h3>How to calculate the total perimeter?</h3>

We are told that Isabelle had a five sided chicken coop in her yard and that the length was equal in all the sides.

Now, we need to find the total perimeter of the chicken coop.

The length of one side of the coop from online sources is 3√5 yards.

Since the coop is 5 sided, it means that it is a pentagon and we know that;

Perimeter of a pentagon = 5a

Where a is length of one side of the pentagon. Thus;

Perimeter = 5 x 3√5

Perimeter = 15 √5 yards

Read more about Total Perimeter at; brainly.com/question/24571594

#SPJ1

8 0
2 years ago
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