Answer:
lions=105 elephants=252
Step-by-step explanation:
We know that there is a total of 375 lions and elephants. We also know the ratio of those. With these two we can build an equation that gives us the exact number of each of the two species.
We can multiply the ratio by x:
(5/12)*(x/x)
now we have:
5x/12x
we input these new data into the total number of both animals:
5x+12x=357
17x=357
x=357/17
x=21
remember x is not the number of any of the animals
number of lions is 5x=5*21=105
number of elephants is 12x=12*21=252
Answer:
The capacity is 18 transistors, 43 resistors and 4 computer chips.
Step-by-step explanation:
This problem can be solved by a system of equations.
I am going to say that:
x is the number of transistors that are made.
y is the number of resistors that are made.
z is the number of computer chips that are made.
Building the system:
A transistor requires 1 unit of copper. A resistor requires 2 units of copper. There are 104 units of copper. So 
A transistor requires 2 units of zinc. A resistor requires 3 units of zinc. A chip requires 1 unit of zing. There are 169 units of zinc. So
.
A transistor requires 3 units of glass. A chip requires 5 units of glass. There are 74 units of glass. So 
We have the following system:



The solution is:

The capacity is 18 transistors, 43 resistors and 4 computer chips.
The first7 represents70,000 the second represents 7,000 or 7 ten thousands and 7 thousands
The answer is 374 cm²
Area (A) of a hexagon with side a is:

A ≈ 374 cm²
Class D has 28% boys because 50 x 28% (or .28) you get 14
Hope this helps!