Answer:x=18
Step-by-step explanation:2x-9=x+9
Answer:=
1 7/18
Step-by-step explanation:
Turn the improper fraction into a mixed fraction.
Answer:
f(x) = |x|
Step-by-step explanation:
The graph shows that only positive y-values are used, which means y is the absolute value of x.
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Answer:
Son's Age: 11
Mary's Age: 33
Step-by-step explanation:
Let set Mary and her son as variables,
M = Mary's age
S = Mary's son age
<u>Breakdown:</u>
"Mary is three times as old as her son"
M = 3S
"In <em>12 years</em>, Mary's age will be one less than <u>twice her son's</u> age"
M <em>+ 12</em> = <u>2</u>(S <em>+ 12</em>) - 1
we add 12 to both sides as it will be in 12 years for both
We know that M = 3S, so we plug this in
3S + 12 = 2(S + 12) - 1
Now solve for <em>S (son's age),</em>
3S + 12 - 12 = 2(S + 12) - 1 - 12
3S = 2(S + 12) - 13
3S = 2S + 24 - 13
3S - 2S = 2S - 2S + 24 - 13
S = 24 - 13
S = 11
To find <u>Mary age</u>, plug in her son age ,
M = 3S
M = 3(11)
M = 33
Learn more about Substitution here: brainly.com/question/22340165
Take number cubes and roll them.... let's say you get 2 and 6
write 2 in the left window and 6 in the right window
2+6=8
8 goes in the box in the attic
the fact family would be as follows....
2+6=8
6+2=8
8-6=2
8-2=6
