The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable
Answer:
His rate of change is 7 pounds per week.
Step-by-step explanation:
Rate of change = change in weight ÷ change in time
change in weight = 188 - 167 = 21 pounds
change in time = 6 - 3 = 3 weeks
Rate of change = 21 ÷ 3 = 7 pounds/week
Answer:
8
Step-by-step explanation:
Answer:
it's the last one *25,000 J
Step-by-step explanation:
Answer:
about 9.23 miles or 9 miles
Step-by-step explanation:
you divide 600 by 65