So based on place values, the One's place is occupied by 4. To round to this digit, you go one number to the right. If that number is 5 or higher, you add one to 4. If it is less than 5, you don't add any to 4. Since 7 is greater than 5, you add 1 to 4, giving you 5, since you can now remove all the other numbers to the right.
5.
Answer:
<u>Step-by-step explanation:</u>
÷
= ÷
= x
=
Answer:x=-9
Step-by-step explanation:
Part A :
So the two sides are equivalent,
Solve for x and get 3.
~~
Answer : x = 3
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Part B :
To find JM, simply substitute x for 3 and solve,
~^
Answer : JM = 9
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I hope that helps you out!!
Any more questions, please feel free to ask me and I will gladly help you out!!
~Zoey