Divide the number 520 into two parts in the ratio 5:8.
The parts of the number are ? and ?

The parts of the number are 200 and 320

Step-by-step explanation:

System of Equations

Suppose a and b are the two parts. They must meet two conditions:

From [1], we have:

Replacing in [2]:

Cross-multiplying:

Operating:

Joining like terms:

Solving:

a=200

Since:

b=320

The parts of the number are 200 and 320

this was already solved by me with a different person. if you look it up in the search bar at the top of the page, you will get the answer.

step-by-step explanation:

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d