Question

HELP ASAP PLEASE!!!!

A small brick of sculptor's clay has a mass of 2.2 kg. A large brick of sculptor's clay has a mass of 6.4 kg. Dante ordered a total of 18 bricks of
sculptor's clay. The mass of all the clay was 85.8 kg.
How many large bricks of clay did Dante order?
7
8
9
10
11

Answer 1

Answer : Dante ordered 11 large bricks of clay

Dante ordered a total of 18 bricks.

If he ordered 11 large bricks then the outcome of that would be...

6.4kg times 11 = 70.4kg

That means you have 7 small bricks left...

2.2kg times 7 = 15.4kg

The total would be...

70.4kg + 15.4kg = 85.8kg (the mass of all the clay)