how can the number 39 be divided into two parts in order that the sum of 2 upon 3 of one part and 3 upon 4 of the other part is 28

The two numbers are 15 and 24

Step-by-step explanation:

Let us assume the two parts be x and y

So according to the question

x + y = 39

(2 ÷ 3) x + (3 ÷ 4)y = 28

or

8x + 9y = 28 × 12

8x + 9 × (39 - x) = 336

-x = 336 - 351

x = 15

And, y = 39 - 15

= 24

Hence, the x and y is 15 and 24 respectively

529 and 531

step-by-step explanation:

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!