Harry earns $45 a week more than xena. george earns $18 a week less than xena. if harry earns the same amount in two weeks that george earns in three weeks, how much money does xena earn a week?

this is multi step equations and has to have a formula btw.

Xena earns $144 a week

Step-by-step explanation:

Let,

Xena earns a week = X

Harry earns a week = (X + 45)

George earns a week = (X - 18)

According to the question,

2(X + 45) = 3(X - 18)

or, 2X + 90 = 3X - 54

or, 2X - 3X = -90 - 54

or, -X = - 144

or, X = 144 (Multiplying by -1 in both sides)

Therefore, Xena earns $144 a week.

Harry earns = $(144+45) = $189 and George earns $(144-18) = $126.

the science club has 42 people and the robotics club has 33

step-by-step explanation:

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.