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cupoosta [38]
4 years ago
14

the total entry price of the top of the Eiffel Tower during the low season of 95 Euros for 4 students and five teachers the tota

l entry price is 173 euros and for 6 students and 10 teachers. find total entry price of the Eiffel Tower for a group of three students and 4 teachers
Mathematics
1 answer:
tamaranim1 [39]4 years ago
6 0

Answer:

74.30

Step-by-step explanation:

Let s = entry price for a student

Let t = entry price for a teacher

4s +5t = 95

6s+10t = 173

I will use elimination to solve this problem.

Multiply the first equation by -2

-2(4s +5t) = -2*95

Distribute

-8s - 10t = -190

Add this equation to the second equation to eliminate t

-8s - 10t = -190

6s+10t = 173

----------------------

-2s = -17

Divide by -2

-2s/-2 = -17/-2

s = 8.50

Now we need to find t

4s +5t = 95

Substitute s=8.50

4(8.50) +5(t) = 95

34 +5t = 95

Subtract 34 from each side

34-34 +5t = 95-34

5t = 61

Divide by 5

5t/5 = 61/5

t = 12.20

We want to find the cost for 3 students and 4 teachers

3s+4t

3(8.50) + 4(12.20)

25.50 + 48.80

74.30


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The total source voltage in the circuit is 6-3i V. What is the voltage at the middle source
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Answer:

<em>The voltage at the middle source is</em> (2-4\mathbf{i})\ V

Step-by-step explanation:

<u>Voltage Sources in Series</u>

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The figure shown has three voltage sources of values:

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The sum of these voltages is:

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We know the total voltage is 6-3\mathbf{i}, thus:

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5 0
3 years ago
Can someone help please????​
egoroff_w [7]
Y= 80.55% approximately, 80.6% rounded up

Calculations:

The percent (percentage) of a given number p/q can be found, for the most part, without a calculator by a slight change in the notation:

y=the number 29/36 expressed as a percent becomes

y=[29(2.7777777778 approx.)]/[36(2.7777777778 approx.)]

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y=0.8055(100)

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2 years ago
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Amiraneli [1.4K]

Answer:

3. x=16

4. x=51

Step-by-step explanation:

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2/3x+18=180-3x+25

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5 0
3 years ago
Read 2 more answers
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