Concrete consists of six parts gravel to one part cement. a builder makes up 140kg of concrete mixture. what is the weight of gravel used in this mixture?

120kg

Step-by-step explanation:

The ratio of gravel to cement is 6:1

Then add them up which is 7

The do 140 divided by 7 which is 20

Then do 6 times 20 which is 120

Then do 1 times 20 which is (obviously)20

Then add 20 and 120 which makes 140

Hope it helps!

are ya tryin to ask something or is this a statement

a 90 degree rotation across the the origin followed by a reflection across the x-axis.

step-by-step explanation: