Answer:x=−1 or x=−4
Step-by-step explanation:
Let's solve your equation step-by-step.
3(|2x+5|)−9=0
Step 1: Add 9 to both sides.
3(|2x+5|)−9+9=0+9
3(|2x+5|)=9
Step 2: Divide both sides by 3.
3(|2x+5|)
3
=
9
3
|2x+5|=3
Step 3: Solve Absolute Value.
|2x+5|=3
We know either2x+5=3or2x+5=−3
2x+5=3(Possibility 1)
2x+5−5=3−5(Subtract 5 from both sides)
2x=−2
2x
2
=
−2
2
(Divide both sides by 2)
x=−1
2x+5=−3(Possibility 2)
2x+5−5=−3−5(Subtract 5 from both sides)
2x=−8
2x
2
=
−8
2
(Divide both sides by 2)
x=−4
Answer: x=−1 or x=−4
Answer:
W ≈ 5.2 cm
Step-by-step explanation:
Represent the length and width by L and W respectively.
Then L * W = 81 cm^2, and L = 3W.
Substituting 3W for L in the first equation, we get:
3W * W - 81 = 0, or 3W^2 - 81 = 0.
To make it easier to find the final answer, rewrite 3W^2 - 81 = 0 as
81
W^2 = ------- = 27
3
Then W (the width) is the positive square root of 27, or W ≈ 5.2 cm
13) divide 71.5 by 5.5 to find the answer for u.
14) find the common denominator then divide like in the last one
15) multiply 11 by 44 to find t
16) multiply 14 by 8.3 to find b
17) multiply 3 by 15 to find x
18) divide 23.4 by 7.8 to find x
Answer:
115,200
Step-by-step explanation:
There are 1,440 minutes in a day so multiple the beats per minute (80) by the amount of minutes in a day (1,440)
The integer for a debt of 20 is -20