It cost 17.50 to get into the fair and then cost $8.75 for every ride. I go on . I spent a total of $131.25. Write an equation and solve it to find the number or rides I went on .

131.25= 17.50+8.75x is the equation

Step-by-step explanation:

solve it to find x

131.25=17.50+8.75x

(subtract 17.50 from both sides)

113.75=8.75x

(divide both sides by 8.75)

13=x

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500