Afarmer wants to transport 100 cows to another farm. each truck can carry 7cows. he has 10 trucks . how many more trucks does he need?

5 trucks

Step-by-step explanation:

Since 1 truck=7cows

          10trucks=70cows

          remaining cows=100-70

                                      =30cows

       I Truck=7cows

            ?       =30cows

      Number of trucks =30/7

                                     =4.3 and since trucks cannot be in ratio

then we approximate it to 5 trucks

It must have the same slope as the given line, so

m = -A/B = -1/-2 = 1/2

So far, we have

y = mx + b = x/2 + b

Use the given point to find b.

4 = -2/2 + b = -1 + b

b = 5

y = x/2 + 5

Multiply through by 2.

2y = x + 10

Standard form:

x - 2y = -10