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KonstantinChe [14]
1 year ago
10

Evan saves 7 dollars each week. let d represents the total amount of money in dollars Evan saves after w weeks.

Mathematics
1 answer:
DerKrebs [107]1 year ago
8 0
D=7
D to W = 19
Gives total savings on Week W $133
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A school allots £1500 to spend on a trip to the theatre.
stich3 [128]

Answer:

40 students

Step-by-step explanation:

If the tickets are 1/5 that means they cost 4/5

25 * 4/5 = 20

The tickets cost 20 and the train costs 15 so the total per person is 35

Teachers: 2 at 35 = 70

1500 -70 = 1430

Take 1430 / 35 =40.85714286

We can send 40 students

3 0
2 years ago
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At a sand and gravel plant, sand is falling off a conveyor, and onto a conical pile at a rate of 10 cubic feet per minute. The d
kherson [118]

Answer:

dh/dt=9.82x10^-3 ft/min

Step-by-step explanation:

1. You have that the rate is10 ft³/min. Then:

dV/dt=10

2. The formula for calculate the volume of a cone, is:

V=1/3(πr²h)

"r" is the radius and "h" is the height.

3. The diameter of the base of the cone is approximately 3 times the altitude. Then, the radius is:

r=diameter/2

diameter=3h

r=3h/2

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V=1/3(πr²h)

V=1/3(π(3h/2)²(h)

V=1/3(π9h²/4)(h)

V=9πh³/12

5. Therefore:

dV/dt=(9πh²/4)dh/dt

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dV/dt=10

6. When you substitute the values of dV/dt and h into dV/dt=(9π(12)²/4)dh/dt, you have:

dV/dt=(9π(12)²/4)dh/dt

10=(1017.876)

7. Finally, you obtain:

dh/dt=10/1017.876

dh/dt=9.82x10^-3 ft/min

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3 years ago
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8 0
3 years ago
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Which of the following is the equation of the line that has a slope of negative three and passes through the point begin ordered
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It’s negative 4 your welcome
8 0
1 year ago
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Answer:

The answer is 27 miles and option b will give that.

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1.75 + 0.45m = 13.90

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Hope this helped

3 0
3 years ago
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