The combined mass of two trucks is 29 tonnes. The heavier truck is 1 tonne less than twice the mass
of the smaller truck. Write two equations and solve them to find the mass of each truck.

Mass of the smaller truck is 10 tonnes and that of the heavier truck is 19 tonnes.

Step-by-step explanation:

⇒ x + 2x - 1 = 29

⇒ 3x - 30 = 0

⇒ 3x = 30

⇒ x = 10 tonnes

and 2x - 1 = 20 - 1 = 19 tonnes

the answer is b

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.