Answer:
Speed = 80 m/s
Step-by-step explanation:
The formula to find the speed of a wave is found by
Speed = Wavelength x Frequency where the frequency is in HZ and the wavelength is in meters
Speed = 200 * .40
Speed = 80 m/s
To solve for X you need to simplify both sides on the equation
<span><span><span>23</span><span>(<span><span>4x</span>−5</span>)</span></span>=8
</span><span><span><span><span>(<span>23</span>)</span><span>(<span>4x</span>)</span></span>+<span><span>(<span>23</span>)</span><span>(<span>−5</span>)</span></span></span>=8 *</span>Distribute*
<span><span><span><span>8/3</span>x</span>+<span><span>−10/</span>3</span></span>=<span>8
after that you add 10/3 on both sides
</span></span><span><span><span><span><span>8/3</span>x</span>+<span><span>−10/</span>3</span></span>+10/3</span>=<span>8+10/3</span></span><span><span><span>8/3</span>x</span>=<span>34/<span>3
finally multiply 3/8 on both sides
</span></span></span><span><span>(<span>3/8</span>) x </span><span>(<span><span>8/3</span>x</span>)</span></span>=<span><span>(<span>3/8</span>) x </span><span>(<span>34/3</span><span>)
and your answer should be
X= 17/4
</span></span></span>
Answer:
Step-by-step explanation: NO SCAM AT ALL 100% LEGIT PLEASE LOOK AT THE PHOTO I PUT.
ANSWER
The correct answer is 4.6
EXPLANATION

Since U is the midpoint of |RS|,

U being the midpoint of RS means, it is in the middle of R and S.
So if from R to U is 2.3, then from U to S is also 2.3.
This is an implication that


See diagram in the attachment.
Since Lucy's mom needs to pay for a little bit of work she did, there could two ways her mom could her such as:
1. Her mom will give her the reimbursement check to encash that would serve as a payment to her.
2. Her mom can encash the check and give her the amount that would compensate her work done.