Answer:
x = 21
Step-by-step explanation:
5x + 18 = 7x - 24
=> 5x - 7x = - 24 - 18
=> -2x = - 42
=> x = -42 / -2
=> x = 21
Hope it helps :)
Please mark my answer as the brainliest
H=height
y=number of years.
we have the next expresion:
h(y)=my+b
m=the slope of the line, in this case, the slope is equal to "18"; (18 cm/ year).
b=the initial heigth, in this case, the initial heigth is equal to "5" (5 cm).
Therefore, our expression will be:
h(y)=18y +5
answer: h(y)=18y+5
Answer:
-3/2 ≤ x < 5
Step-by-step explanation:
Begin the solution of this inequality 2x - 3 < x + 2 ≤ 3x + 5 by combining the constants: Subtracting 2 from 2x - 3, x + 2 and 3x + 5 yields:
2x - 5 < x ≤ 3x + 3.
Focus on the first part of this inequality, 2x - 5 < x simplifies to x - 5 < 0 if we subtract x from both sides. Then x < 5 is part of the solution.
Focus now on the second part of this inequality: x ≤ 3x + 3. Subtracting x from both sides yields 0 ≤ 2x + 3, or -3 ≤ 2x, or 2x ≥ -3, or x ≥ -3/2.
Re-combining these two separate inequalities results in:
-3/2 ≤ x < 5 (equivalent to -1.5 ≤ x < 5).
Example: suppose we choose a test number from this interval. Does this test number satisfy the original equation? Choose x = 1.
Is 2(1) - 3 < 1 + 2 ≤ 3(1) + 5 true?
Is 2 - 3 < 3 ≤ 8 true? YES. So x = 1 is part of the solution set -3/2 ≤ x < 5.
One other one must be 35, and the other two have to be 145 each.
Answer:
11
Step-by-step explanation:
3x - 7 = 26
+7 +7
3x/3 = 33/3
33/3 = 11
