Answer:
3+4+3+4+3+4+3+4=28
Step-by-step explanation:
the permiter is 28in
Answer: 103/15
Step-by-step explanation:
We can simplify the right-hand side to be
.
This means we need to solve:

Answer:
The corret answer is leter B
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
The 6 comes from the 24(6*4=24)
The 3 comes from the 12(3*4=12)
The 4 is common
Answer:
40 students
Step-by-step explanation:
In this problem, one is given the ratio ( 8 : 3 ), since a ratio is another way of writing a fraction one can rewrite it as;
(8) represent the number of students who want to learn about magnets, and (3) represents the number of students who want to learn about magic tricks.
In the problem, it is also given that 25 more students wanted to learn about magnets compared to magic tricks. If one uses the parameter (x) to represent the factor by which the fraction
is reduced, then one can get the equation;
8x = 3x + 25
Use inverse operations to solve,
8x = 3x + 25
-3x
5x = 25
/5
x = 5
Substitute back in to find out how many students want to learn about magnets,
8x
= 8(5)
= 40