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saw5 [17]
3 years ago
14

Leila takes classes at both Westside Community College and Pinewood Community College. At Westside, class fees are

Mathematics
1 answer:
antoniya [11.8K]3 years ago
6 0
Y = 98(w) + 115(18 - w)
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a concert promoter sold 475 tickets to a rock concert the ticket prices for different seat locations were 10 15 and 20 the total
Andrej [43]

282.5 of 10 tickets were sold in the rock concert by the promoter

<h3>How to determine the number of 10 tickets?</h3>

To do this, we make use of the following representations:

  • x represents the 10 tickets
  • y represents the 15 tickets
  • z represents the 20 tickets

The 475 tickets that were sold means that:

x + y + z = 475

The income means that:

10x + 15y + 20z = 6300

Also, we have:

10y = 4z

Divide both sides by 10

y = 0.4z

Substitute y = 0.4z in 10x + 15y + 20z = 6300

10x + 15*0.4z + 20z = 6300

10x + 6z + 20z = 6300

Evaluate the like terms

10x + 26z = 6300

Substitute y = 0.4z in x + y + z = 475

x + 0.4z + z = 475

Evaluate the like terms

x + 1.4z = 475

Make x the subject

x = 475 - 1.4z

Substitute x = 475 - 1.4z in 10x + 26z = 6300

10(475 - 1.4z) + 26z = 6300

Expand

4750 - 14z + 26z = 6400

Evaluate the like terms

12z = 1650

Divide both sides by 12

z = 137.5

Substitute z = 137.5 in x = 475 - 1.4z

x = 475 - 1.4 * 137.5

Evaluate

x = 282.5

Hence, 282.5 of 10 tickets were sold

Read more about system of equations at:

brainly.com/question/14323743

#SPJ1

3 0
2 years ago
Order of operation and mathematical con vent ion
Nat2105 [25]
PEMDAS - Parenthesis, exponent, multiply, divide, add, subtract
8 0
3 years ago
What is the measure of PSQ in degrees <br> 9<br> 24<br> 45<br> 54
ss7ja [257]

Answer:

m\angle PSQ=45^o

Step-by-step explanation:

we know that

m\angle PSR=m\angle PSQ+m\angle QSR ---> by addition angle postulate

substitute the given values

99^o=(3x+18)^o+(9x-27)^o

solve for x

99^o=(12x-9)^o

12x=99+9

12x=108

x=9

<em>Find the measure of angle PSQ</em>

m\angle PSQ=(3x+18)^o

substitute the value of x

m\angle PSQ=(3(9)+18)=45^o

4 0
3 years ago
Read 2 more answers
Which is greater 0.34 L or 430 mL
Marina86 [1]
0.34 L is equal to 340 ml
430 ml is equal to 0.43
5 0
3 years ago
Read 2 more answers
La altura de un trapecio isósceles es de 4 cm, la suma de las medidas de las bases es de 14 cm y los lados oblicuos miden 5 cm.
Temka [501]
Teorema de Pitagoras a^2 + b^2 = c^2
4^2 + b^2 = 5^2
16 + b^2 = 25
- 16. -16
b^2 =. 9
b = 3

Si el fondo base mide mas que el superior base, miden 14 (fondo) y 14 - 3 (izquierda) -3 (derecho) = 8
3 0
3 years ago
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