Answer:
15y=x
Step-by-step explanation:
8-4=4
4-(3/4)= 3.25 or 3 1/4
Answer:
Decimal form:
2.10526315789
Step-by-step explanation:
d = r · t ⇒ t = d/r
going
t = 54/(r + 4)
coming
t = 30/(r - 4)
54/(r + 4) = 30/(r - 4) times are equal
54(r - 4) = 30(r + 4) product means/extremes
54r - 216 = 30r + 120 distribute
24r - 216 = 120 subtract 30r from both sides
24r = 336 add 216 to both sides
r = 14 divide both sides by 24
Alfonso bikes at 24 mph.
Answer:
<h2>

</h2>
Step-by-step explanation:
To find y when x=4, we must first find the relationship between them
The statement
y varies directly with x is written as
<h3>

</h3>
where k is the constant of proportionality
From the question
when y = 1/5
x = 3
Substitute the values into the above formula and solve
That's
<h3>

</h3>
So the formula for the variation is
<h3>

</h3>
From the question
when x = 4
<h3>

</h3>
Hope this helps you