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alekssr [168]
3 years ago
14

HELPPPP

Mathematics
2 answers:
Nimfa-mama [501]3 years ago
5 0

Answer B. Draw a perpendicular bisector

Step-by-step explanation:

finlep [7]3 years ago
3 0
The answer is B. Draw a perpendicular bisector
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The ratio of lions to elephants in the southern region of africa is 5 to 12. The total number of lions and elephants in the sout
Talja [164]

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

8 0
4 years ago
An electronics company produces transistors, resistors, and computer chips. Each transistor requires 1 unit of copper, 2 units o
Montano1993 [528]

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 x + 2y = 104

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 2x + 3y + z = 169.

A transistor requires 3 units of glass. A chip requires 5 units of glass. There are 74 units of glass. So 3x + 5z = 74

We have the following system:

x + 2y = 104

2x + 3y + z = 169

3x + 5z = 74

The solution is:

x = 18, y = 43, z = 4

The capacity is 18 transistors, 43 resistors and 4 computer chips.

4 0
3 years ago
Write a sentence that explains the relationship between the values of the two sevens in 277,180
Andreas93 [3]
The first7 represents70,000 the second represents 7,000 or 7 ten thousands and 7 thousands
4 0
3 years ago
Find the area of a hexagon with sides of length 12 cm
xxMikexx [17]
The answer is 374 cm²

Area (A) of a hexagon with side a is:
A= \frac{3 \sqrt{3} }{2}  a^{2} \\  \\ 
a = 12cm \\  \\ 
 A= \frac{3 \sqrt{3} }{2}  12^{2} \\  \\ 
A= \frac{3 \sqrt{3} }{2} *144 \\  \\ 
A =\frac{3 *1.73}{2} *144 \\  \\ 
A = 373.7 cm^{2}
A ≈ 374 cm²
5 0
3 years ago
Which class has 28% boys?
Bas_tet [7]
Class D has 28% boys because 50 x 28% (or .28) you get 14

Hope this helps!
4 0
3 years ago
Read 2 more answers
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