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adoni [48]
3 years ago
5

Tickets to a concert cost $2 for children, $3 for teenagers and $5 for adults. When 570 people attended the concert, the total t

icket receipts were $1950. Three-fourths as many teenagers as children attended. How many adults attended?
A . 200
B . 150
C . 220
D . 316
Mathematics
2 answers:
dmitriy555 [2]3 years ago
8 0

Answer:

150

Step-by-step explanation:

just took the quiz and  got it right

beks73 [17]3 years ago
6 0

the answer would be C. i do believe hope this helps

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Solve the system of equations. x+y=4 y=x^2 - 8x + 16 a) {(-3,7).(-4, 8)} b) [(4,0)} c) {(3,1),(4,0) d) {(3,7). (4.0)} e) none
Marysya12 [62]

Answer:  The required solution of the given system is

(x, y) = (3, 1)  and  (4, 0).

Step-by-step explanation:  We are given to solve the following system of equations :

x+y=4~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)\\\\y=x^2-8x+16~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(ii)

From equation (i), we have

x+y=4\\\\\Rightarrow y=4-x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(iii)

Substituting the value of y from equation (iii) in equation (ii), we get

y=x^2-8x+16\\\\\Rightarrow 4-x=x^2-8x+16\\\\\Rightarrow x^2-8x+16-4+x=0\\\\\Rightarrow x^2-7x+12=0\\\\\Rightarrow x^2-4x-3x+12=0\\\\\Rightarrow x(x-4)-3(x-4)=0\\\\\Rightarrow (x-3)(x-4)=0\\\\\Rightarrow x-3=0,~~~~~~~x-4=0\\\\\Rightarrow x=3,~4.

When, x = 3, then from (iii), we get

y=4-3=1.

And, when x = 4, then from (iii), we get

y=4-4=0.

Thus, the required solution of the given system is

(x, y) = (3, 1)  and  (4, 0).

8 0
3 years ago
Is this a function? plz help me i need help
LenaWriter [7]

Answer:

yes it is

Step-by-step explanation:

4 0
2 years ago
FIRST PROPER ANSWER GETS BRAINLIEST ON TEST PLEASE HELP!!!
Irina-Kira [14]
Area of a semicircle = \pi r² / 2 
r= 5/2 = 2.5

So: A= 3.14 x 2.5² / 2  A = 9.8125 so rounding to the nearest hundredth is A=9.81
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3 years ago
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Look at the picture below to answer. If u answer correctly i will mark you as brainliest!
wlad13 [49]

Answer:

A

Step-by-step explanation:

The points are similar

4 0
2 years ago
Please help with this question
NISA [10]

Answer:

choice A

Step-by-step explanation:

f(x) * g(x) = √2x × √18x

= √36 * x

= 6x

5 0
2 years ago
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