Answer: x = 1
Explanation:
Let x be the unknown number.
Thus:
2x + (14 • 2) = 30
2x + 28 = 30
2x = 30 - 28
2x = 2
x = 2/2
x = 1
Answer: Therefore, the age of my sister is 13 years.
Step-by-step explanation:
Let the age of my sister is x yeas.
Then according to question..
24 = 2x -2
Or, 2x=26
or, x= 26/2
x= 13
So just remember tha tyou can do anything to an equation as long as you do it to both sides (except divide by 0) so
-7.12=-4.8+x
add 4.8 to both sides since -4.8+4.8=0 so it cancels
4.8-7.12=x
simplify
4.80-7.12=-2.32
-2.32=x
the naswer is C
Answer:
the perimeter of is 32 cm
Step-by-step explanation:
of the perimeter is 32 and the base is 12. then the other two sides are both 10 cm.
If the length of the real airplane is 38 then 19x2 is 38, so 18x2 36. therefore you answer is 36
