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dusya [7]
3 years ago
15

Please help! really stuck on this question!

Mathematics
1 answer:
kipiarov [429]3 years ago
6 0

Answer:

132 people bought balcony seats and 450 people bought ground seats.

Step-by-step explanation:

We want to solve the system of equations:

\left\{        \begin{array}{ll}            15b+10g=6480 \\            b+g=582        \end{array}    \right

We can solve this by using substitution. From the second equation, we can subtract <em>b</em> from both sides:

g=582-b

In the first equation, we can divide both sides by five:

3b+2g=1296

Substitute:

3b+2(582-b)=1296

Distribute:

3b+1164-2b=1296

Simplify:

b+1164=1296

Solve for <em>b: </em>

<em />b=132<em />

<em />

Using the modified equation again, substitute:

g=582-(132)

Evaluate:

g=450

Therefore, 132 people bought balcony seats and 450 people bought ground seats.

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Find the perimeter of the shaded region below.
Dmitriy789 [7]

9514 1404 393

Answer:

  24x

Step-by-step explanation:

The total length of all vertical segments is 5x·2 = 10x.

The total length of all horizontal segments is (3x+4x)·2 = 14x.

Then the total length of all perimeter segments is ...

  10x +14x = 24x . . . . perimeter of the figure

5 0
3 years ago
Last year, Bob used 10 bottles of shampoo and 8 bottles of conditioner. His sister, Kayla, used 7 bottles of shampoo and 6 bottl
REY [17]
The lower ratio would be bob and that dude need to slow down the hair stuff

10 to 8 ratio is about 8.00
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6 0
4 years ago
Whats this answer? Number 7 ;) Tysm!
charle [14.2K]
The answer is d=13 1/6
4 0
4 years ago
Read 2 more answers
Got a calc 1 question,
belka [17]

v=\dfrac h{3x}\implies\dfrac{\mathrm dv}{\mathrm dt}=\dfrac{3x\frac{\mathrm dh}{\mathrm dt}-3h\frac{\mathrm dx}{\mathrm dt}}{3x^2}

By the chain rule,

\dfrac{\mathrm dh}{\mathrm dt}=\dfrac{\mathrm dh}{\mathrm dx}\dfrac{\mathrm dx}{\mathrm dt}

We have

h(x)=4e^{2x-6}-x^2+5\implies\dfrac{\mathrm dh}{\mathrm dx}=8e^{2x-6}-2x

and we're given that x changes at a constant rate of \frac{\mathrm dx}{\mathrm dt}=0.2 thousand people per minute, which means

\dfrac{\mathrm dv}{\mathrm dt}=\dfrac{3x\left(8e^{2x-6}-2x\right)\left(0.2\frac{\text{thousand people}}{\rm min}\right)-3h\left(0.2\frac{\text{thousand people}}{\rm min}\right)}{3x^2}

At the moment x=4 thousand people are in the park, we have h(4)=4e^2-11, so we find

\dfrac{\mathrm dv}{\mathrm dt}=\dfrac{12\left(8e^2-8\right)-3(4e^2-11)}{240}\dfrac{\text{thousand people}}{\rm min}=\dfrac{7(4e^2-3)}{80}\dfrac{\text{thousand people}}{\rm min}

or approximately 2.324 thousand people per minute.

5 0
4 years ago
What is the sum of the arithmetic sequence 6, 14, 22,<br> if there are 26 terms
Arisa [49]
Sum of nth term of arithmetic sequence is given by Sn = n/2[2a + (n - 1)d]
Here, a = 6, n = 26 and d = 14 - 6 = 8
S26 = 26/2[2(6) + (26 - 1)8] = 13[12 + 25(8)] = 2,756
3 0
4 years ago
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