2x+y=8 and y=x-7 solving systems by substitution

5 3/4 converted to a decimal?

Jim, Dan and David share some sweets in the ratio 5:4:5. Jim gets 65 sweets. How many did Dan get?

ned, the owner of neds nut shop, sells peanuts for $7 per pound and cashews for $6 per pound. ned wants to great a 20 pound barrel of mixed nuts and sell it for $6.35 per pound. how many pounds of peanuts and cashews should ned use?

What are the domain and range of f (x) = (1/5) ^x? •The domain is all real numbers. The range is all real numbers. •The domain is all real numbers. The range is all real numbers greater than zero, •The domain is all real numbers greater than zero.

A dollar store sells items for $1 and $2. You plan to go there and spend at least $20. Let x stand for the number of one-dollar items and let y stand for the number of two-dollar items. Write and graph a linear inequality that models the situation.

Simplify the expression a^b: 5x^4 y^2 * 3x^6 y^9

A number plus 5 more than 3 times the number is 37. Find the number

A biker traveled 20 miles in 4 hours. A unit rate to describe this would be 5 miles per hour. What is another unit rate in this situation?

On Monday, a local hamburger shop sold a combined total of 504 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Monday?

How to subtract micro fractions