Determine whether x=3, x=4, or x=5 is the solution. 8x=328x=32

Solve the equation x4+1296= O

. Justin wants to buy a new bike that costs $115. He has $40 and plans to save $15 each week. Define a v write and solve an equation to determine how many weeks will it take him to save enough money to buy th a. 15x+40 =115; x=number of weeks; 5 weeks b. 12x + 40 = 115; x = number of weeks; 6 weeks c. 12x + 40 = 115; x = number of weeks; 5 weeks d. 15x + 40 = 115; x = number of weeks; 6 weeks

Fred flops into a pool from a platform 18.75 feet above water. His height above the water in feet x seconds into the flop is given by the expression – 5(x – .5)² + 20. How long will it take Fred to hit the water? (Hint: set the equation equal to 18.75 and solve the equation). seconds

2x+y=7

Elimination is to multiple 10x+13y=88 4x+y=16

Suppose that Mario owns a company that rents moving vans. Mario’s customers pay $22$22 per day to rent a van and an additional $0.59$0.59/mi. Thus, a customer who rents a van for one day and drives it ?x miles must pay a total cost of ?=22+0.59?.C=22+0.59x. Over the last two months, Mario had 3030 customers who made one-day rentals. All together, these customers drove the vans a combined 3300 mi.3300 mi. Find the mean cost for these customers. Round the answer to the nearest cent.

You fill a box with 6 more apples than pears. Create an equation that represents the number of fruit inside the box. First label the unknowns: Let a be the number of apples in the box. Let p be the number of pears.

The 7th grade class at Jackson Middle School consists of 45% boys and 55% girls. 50% of boys sign up for Physical Education (PE) and 75% of girls sign up for PE. Let n represent the number of students in 7th grade and p represent the number of students signed up for PE. Which equation models this situation?

A bakery opens every day with 12 dozen muffins (there are 12 muffins in one dozen) and sells 15 muffins per hour a. Write an equation to represent the number of muffins remaining after a number of hours . B. If the bakery has 99 muffins left,for how many hours has it been open?