At the city museum, child admission is $5.90 and adult admission is $9.60. on thursday, 131 tickets were sold for a total sales of $1050.40 . how many child tickets were sold that day?

yee

c=number of children tickets

a=number of adult tickets

131 tickets sold means c+a=131

total is 1050.40 so 5.90c+9.60a=1050.40

elimination

for c+a=131

multily both sides by -5.90

-5.90c-5.90a=-772.9

add that to other equation

-5.90c-5.90a=-772.9

5.90c+9.60a=1050.40 +

0c+3.70a=277.5

3.70a=277.5

divide both sides by 3.7

a=75

sub into other one

c+a=131

c+75=131

minus 75 from both sides

c=56

56 child tickets were sold that day

1. x> -5

2. x< 8

step-by-step explanation:

1. 2x> -10

divide by 2 from both sides of equation.

2x/2> -10/2

simplify, to find the answer.

-10/2=-5

x> -5 is the correct answer.

2. 3x< 24

divide by 3 from both sides of equation.

3x/3< 24/3

simplify, to find the answer.

24/3=8

x< 8 is the correct answer.

i hope this you, and have a wonderful day!

d 600 because 15*10*2=300

300+300=600

step-by-step explanation: