Explain how u can use estimation to check that ur answer is reasonable

If 5 times a number is subtracted from 3 times its square, the result is 2. Find the number.

Consider the formula d = rt, where d represents distance, r represents rate, and t represents time. How could the formula be rearranged to determine the number of hours it takes to reach Kate's destination? A) t=d/r B) t=r/d C) t=rd D) t=dr

A rectangular carport has area of 150 squarefeet. The width of the carport is five feet less than twice its length. Find the length and the width of the carport.

A long distance runner starts a race at 1 m/s. he increases his speed to 3 m/s during the middle of the race and slows down to 2 m/s at the end. in total he runs 2,000 meters in 12 minutes (720 seconds). what is his average speed?

A hotdogs costs $3 and a corndog costs$1.50. If$201 was collected, how many corndogs were sold?

An elevator starts out at the 1st floor. It goes up 4 floors, down 2 floors, up 5 floors, down 3 floors, up 2 floors and stops. What floor is it now on?

A store sells 3 ears of corn for $1 they round prices to the nearest cent. Tell whether you would describe the relationship between cost and number of ears of corn as proportional relationship justify your answer

The rectangle below has an area of 70y^8+30y^670y 8 + 30y 6 70, y, start superscript, 8, end superscript, plus, 30, y, start superscript, 6, end superscript square meters.

What are ratios that are equivalent to 8:20?

Debra drove 380 miles using 14 gallons of gas. At this rate, how many gallons of gas would she need to drive 418 miles?