<h2>
The value of x = 36</h2>
Step-by-step explanation:
We have,
x, 45, 40 and 50 are in a proportion.
x : 45 : : 40 : 50
To find, the value of x = ?
We know that,
a : b : : c : d
Product of means = Product of extremes
a × d = b × c
∴ a × d = x × 50
Also,
b × c = 45 × 40
∴ x × 50 = 45 × 40
⇒ x = 
⇒ x = 
⇒ x = 9 × 4 = 36
∴ The value of x = 36
Answer:
3x-y=15 should be the answer
Option B: 
is the correct answer.
Explanation:
The exponential equation is 
If 
, then 
Thus, the equation becomes
Applying log rule, 
and thus the equation becomes
Since, we know that, 
, using this we get,
Hence, the logarithmic equation which is equivalent to the exponential equation is
Thus, Option B is the correct answer.
Answer:
Step-by-step explanation:
Tutoring ABC - $50 sign up and $12 an hour
HW helps- $38 sign up and $15 an hour
50 38
<u>+12</u> <u>+15</u>
62 53
<u>+12</u> <u> +15</u>
74 68 Four months
<u>+12</u> <u>+ 15</u>
86 83
<u>+12</u> <u>+15</u>
98 98
What kind of subject do you tutor in ? c:
