Answer:
300
Step-by-step explanation:
IBM makes 30% profit = 130% of product value
390=130x
390/130=x
3=x
100*x=cost of product
300
Essentially, you're going to want to reverse the steps on x in order to isolate it from the rest of the variables. To do this, perform inverse operations on x. The first one of these is the multiplication of x and m, so divide both sides by m to cancel m out on the right side. Now we have y/m = x + b. The final thing to do in order to isolate x is to subtract b from both sides. This yields us y/m - b = x. This can be rearranged into x = y/m - b, which should be your answer.
Answer:
<h2>Step-by-step explanation:</h2>
Put the values
a = 3 as well as b = 4
- (a)² + (b)² = c²
- (3)² + (4)² = c²
- 9 + 16 = c²
- 25 = c²
- 5 = c
<h2>Proof:</h2>
(3)² + (4)² = 5²
9 + 16 = 25
25 = 25
<h3>
Hence verified, that a² + b² = c²</h3>
1/2(12w+8) -1/5(10w-5) = 4w + 3 or 4w + 5
( im kinda confused on this myself)