Answer:
136
Step-by-step explanation:
A = (b1 + b2)h/2
A = (22 cm + 12 cm)(8 cm)/2
A = 136 cm^2
1) 3/4-1/4=2/4=1/2
2)3/10-1/10=2/10=1/5
Answer:
13.8 days
Step-by-step explanation:
In this case we can solve it by means of a rule of three, knowing the amount of life for 1000 grams, it must be proportional for 600 grams, like this:
grams days
1000 23
600 x
x = 600 * 23/1000
x = 13.8
which means that for the 600 grams it would be an average life of 13.8 days.
I think we need a coordinate grid for that,,
