Julie has 15 nails. She uses 8 to build a birdhouse. She subtracts to find the number of nails left. Which addition sentence can
she use to check her work???
2 answers:
Answer:
15-8=n
Step-by-step explanation:
n=7 if its with the variable OR you could use 15 - 8 = 7. just basic subtraction
Answer:
8+7=15
Step-by-step explanation:
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I think its irrational bc if you put it as the squareroot of 329, it results in neverending decimals.
18^2=324+5=329
If 6 of the 13 books are new, then 7 of them are used. The ratio of new (6) to used (7) is
6:7 or 6/7
Ratio of all books (13) to used books (7) is
13:7 or 13/7
7 > z + 18 ≥ 6
Subtract 18 from all 3 parts:
7-18 > z +18 -18 ≥ 6-18
-11 > z ≥ -12
First we'll substitute 
with 
Then we can separate this.
Then we'll solve this.
Then we'll plug in to find the extraneous solutions (if any)
Answer:
answer down below
Step-by-step explanation:
11.h=-5 12.k=7.8
13.y=-4 14.h=36
15.v=18 16.c=-32
17.k=8 18.x=-29
19.m=28 20.v=11
