Answer:
d
Step-by-step explanation:
Answer: Option 'D' is correct.
Step-by-step explanation:
Since we have given that
Rate at which Alina swim = 2.5 miles per hour
Rate at which Talia swim = 1.8 meters per second
First we need to change meters per second into miles per hour
As we have given that
and
So, to change into miles per hours, we'll apply this,
So,
Difference between their rates will be given by
Hence, Talia swims about 1.5 miles per hour faster than Alina.
So, Option 'D' is correct.
Answer:
a= 13+3b
Step-by-step explanation:
Simplifying
a + -7 = 3(b + 2)
Reorder the terms:
-7 + a = 3(b + 2)
Reorder the terms:
-7 + a = 3(2 + b)
-7 + a = (2 * 3 + b * 3)
-7 + a = (6 + 3b)
Solving
-7 + a = 6 + 3b
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '7' to each side of the equation.
-7 + 7 + a = 6 + 7 + 3b
Combine like terms: -7 + 7 = 0
0 + a = 6 + 7 + 3b
a = 6 + 7 + 3b
Combine like terms: 6 + 7 = 13
a = 13 + 3b
Simplifying
a = 13 + 3b
The solution to the given equation –2|u| = –68 is u = 34, -34.
<h3>What is the solution to the equation?</h3>
Given the equation in the question;
–2|u| = –68
To find u, divide both sides by -2
–2|u| = –68
(–2|u|)/2 = (–68)/-2
|u| = 34
Remove the absolute value term, this create ± on the right side of the equation. ( |x| = ±x )
u = ±34
Hence,
u = 34, -34
Therefore the solution to the given equation –2|u| = –68 is u = 34, -34.
Learn more about absolute values here: brainly.com/question/1301718
#SPJ1
