Aseem and stana are building model cars. stana's car is 5 less than 2 times the length of aseem's car. the sum of the lengths of both cars is 20 inches. write an equation to determine the lengths of aseem's and stana's cars.

y = 2x - 5

x + y = 20

Step-by-step explanation:

y = stana's car, x = aseem's car

y = 2x - 5

x + y = 20

3x - 5 = 20

Step-by-step explanation:

Let x be the length ( in inches ) of  Aseem's car,

Since, Stana's car is 5 inch less than 2 times the length of Aseem's car.,

So, the length of  Stana's car = 2x - 5

Total length of both car = x + 2x - 5 = 3x - 5

According to the question,

Total length of the both car = 20 inches,

⇒ 3x - 5 = 20

Which is the required equation.

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²