Wooden houses are being built on a concrete base. Each base needs 400 kg of concrete. A cement truck carries 9 tonnes of concrete. How many bases can be laid from one truck load of concrete?

22.5

Step-by-step explanation:

From the question, we are informed that wooden houses are being built on a concrete base and that each base needs 400 kg of concrete. We are further told that cement truck carries 9 tonnes of concrete.

To calculate the amount of bases that can be laid from one truck load of concrete, we first have to convert the 9 tonnes of concrete to kilogram. It should be noted that:

1000kg = 1 ton

9 tonnes = 9 × 1000 = 9000kg

Since each base needs 400 kg of concrete, the number of bases can be laid from one truck load of concrete will then be:

= 9000kg/400kg

= 22.5 bases

repeat the question

step-by-step explanation:

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x