An aquarium contains dolphins, sharks, and whales. There are twice as many dolphins as whales
and 8 fewer sharks than dolphins and whales com-
bined. If there are w whales, which of the following
represents the number of sharks?
A. 5w
B. 3w - 8
C. 10 +
D. 3w2–8w
E 3V2w - 8

d.

Step-by-step explanation:

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour