Answer:
7, 9, 11
Step-by-step explanation:
question: Find three consecutive odd integers such that the difference of twice the second and the first is 11.
make the 3 consecutive odd intergers x, y, and z.
numbers are consective (come right after another) AND odd, meaning you would add 2 every time. therefore:
x+2=y
y+2=z
given that: "difference of twice the second and the first is 11."
difference means subtraction
second number is the variable y
first number is the variable x
2y-x=11
----------------
3 equations:
2y-x=11
x+2=y
y+2=z
----------solve by substitution
x+2=y
x =y-2 into 2y-x=11
2y-(y-2)=11
2y-y+2=11
y=9
second number is 9
-----
numbers are 7, 9, 11
No it should be 3,4,5 to make a right triangle
Ok so:
90 + 6x - 7.5x < 30
6x - 7.5x = -1.5
90 - 1.5x < 30
-90 -90
-1.5x < -60
-60/-1.5
x=40
40 < 30
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Answer:
its 7:9
Step-by-step explanation:
6 goes into 42 7 times and 54 9 times