Answer:
1. 5.89×10^6
a= 5.89
b= 6
2. 5.21×10^-5
c= 5/21
c= -5
Step-by-step explanation:
Round to the nearest thousand.
Look at the number in the place value to the right (hundreds). It is a 1. Because 1 is less than 5, round down
4000 is your answer
hope this helps
Answer:
Joe is 14.
Martha is 28.
Step-by-step explanation:
Use the variables and information from the question to make equations.
If Joe's age is half Martha's:
(1/2)m = j OR 2j = m
If their ages combined is 42:
m + j = 42
We can substitute the equation m=2j into equation m + j = 42, replacing "m".
m + j = 42 Substitute m for 2j
2j + j = 42 Combine like terms, terms with same varables
3j = 42 Divide both sides by 3 to isolate j
j = 14 Joe's age
Since j = 14, we can substitute it into equation m=2j to find "m".
m = 2j Substitute j for 14
m = 2(14) Simplify
m = 28 Martha's age
Therefore Joe is 14 and Martha is 28.
Three and two eight one thousandths
