Answer:
4
Step-by-step explanation:
Answer:
multiply the numerators; express that product over the product of the denominators
Step-by-step explanation:
Multiplication of fractions is done the same way regardless of whether the denominators are the same or different.
The numerator of the product is the product of the numerators.
The denominator of the product is the product of the denominators.
Answer:
x = 10
Step-by-step explanation:
3x/2 = 15
cross multiply
3x = 15 × 2
3x = 30
divide both sides by the coefficient of x
3x/3 = 30/3
x = 10
Answer:
k =
Step-by-step explanation:
Using the rules of logarithms
log x - log y = log( )
log a = log b ⇒ a = b
Given
logk - log(k - 2) = log25, then
log ( ) = log25, thus
= 25 ( multiply both sides by (k - 2)
25(k - 2) = k
25k - 50 = k ( subtract k from both sides )
24k - 50 = 0 ( add 50 to both sides )
24k = 50 ( divide both sides by 24 )
k = =
Let's remember that the coefficient in an algebraic expression is always the number that multiplies the variable. Now, in this case we have that the third term is -2x, then:
the coefficient of the third term would be -2