Jim has $150 to spend on his birthday skating party. It costs $25 to rent a party room. If it costs $10 per person to skate, how many people can attend the party? Write an equation to represent the situation.

Step-by-step explanation:

150 - total budget (150)

25 out of total budget (150 - 25)

solve 150 - 25 for (125)

125/10 = 12.5

the 150-25 is in parentheses so using PEMDAS, it will be completed first for an answer of (125). then 125 x .10 to divide.

the equation would be  -  (150-25).10  (OR)   (150-25)/10

(you can either choose to divide by a whole or multiply by a fraction.

12 people

Step-by-step explanation:

25+10x=150

subtract 25 each side

10x=125

divide both sides by 10

x = 12.5

can't have half a body at a party.

hope this helps :)

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional