Suppose a bank charges a base rate of five dollars plus $.10 per check for your checking account you can switch to a different account that charges four dollars plus $.20 per check for what number of checks is monthly cost of the two accounts the same? What is the cost?

After 10 checks, monthly cost will be same

cost is $6

Step-by-step explanation:

Let the number of checks be x

For the first arrangement

5 + 0.1(x)

Second arrangement;

4 + 0.2(x)

So to have both equal, we equate

5 + 0.1x = 4 + 0.2x

5-4 = 0.2x-0.1x

1 = 0.1x

x = 1/0.1

x = 10

In 10 cheks, both will be equal

Cost of this is;

5 + 0.1(x)

= 5 + 0.1(10)

5 + 1 = 6

but which class are u may know that first

sina-sinb

cosb+cosa

tana-tanb

cos0+cos x pi/3

20tan

step-by-step explanation: