SOLUTION: Can you please assist our fourth grade son with his Algebra? Thank you. 1. Which number makes this a true number sentence? Show your work. 397 + m

SOLUTION: Can you please assist our fourth grade son with his Algebra? Thank you. 1. Which number makes this a true number sentence? Show your work. 397 + m > 412 A. 14 B. 9 C.

Question 712420: Can you please assist our fourth grade son with his Algebra? Thank you.
1. Which number makes this a true number sentence? Show your work.
397 + m > 412
A. 14
B. 9
C. 16
D. 15
2. Which number does NOT make this a true number sentence? Show your work.
480 - z < 459
A. 25
B. 42
C. 21
D. 22
Found 2 solutions by nerdybill, Alan3354:
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
1. Which number makes this a true number sentence? Show your work.
397 + m > 412
397 + m - 397 > 412 - 397
m > 15
that is, m has to be "greater than" 15. Looking at the choice:
A. 14
B. 9
C. 16
D. 15
The ONLY one that is greater than 15 is is choice C
.
2. Which number does NOT make this a true number sentence? Show your work.
480 - z < 459
480 - z - 480 < 459 - 480
-z < -21
z > 21
Looking at available choices:
A. 25
B. 42
C. 21
D. 22
The ONLY choice is D
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
1. Which number makes this a true number sentence? Show your work.
397 + m > 412
Subtract 397
m > 15
=========
A. 14
B. 9
C. 16
D. 15
2. Which number does NOT make this a true number sentence? Show your work.
480 - z < 459
Subtract 480
-z < -21
z > 21
---------
A. 25
B. 42
C. 21
D. 22
------
A, B & D are greater than 21
C is not.
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