Question

210:х=420:6, 480:х=6, у+2940=3000​

Answer 1

210:x=420:6

x=210*6:420

X=3

480:x=6

X=480:6

X=80

Y+2940=3000

Y=3000-2940

Y=60

Answer 2

Let's solve each equation step by step:

1. 210:х = 420:6

To solve this proportion, we can cross-multiply: 210 * 6 = 420 * х

1260 = 420х

Now, divide both sides by 420: 1260/420 = 420х/420

3 = х

So, the value of x is 3.

2. 480:х = 6

Again, cross-multiply: 480 * 1 = 6 * х

480 = 6х

Divide both sides by 6: 480/6 = 6х/6

80 = х

Therefore, the value of x is 80.

3. у + 2940 = 3000

To isolate у, we can subtract 2940 from both sides: у + 2940 - 2940 = 3000 - 2940

у = 60

Hence, the value of у is 60.