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2 years ago

PLEASE HELP WILL GIVE BRAINLIEST!!! Type the correct answer in each box. If necessary, use / for the fraction bar(s).

Mathematics

1 answer:

eduard2 years ago

5 0

Answer:

NEED EXAMPLE PLZ TO ANSWERS!?

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The combined land area of the countries A and B is 178,973 square kilometers. Country A is larger by 373 square kilometers. Dete

ruslelena [56]

X=area of the country A
y=area of the country B
we saggest this system of equations:
x+y=178,973
x=y+373
we solve this system of equations by substitution method.
(y+373)+y=178,973
2y=178,973-373
2y=178600
y=178,600/2=89,300

x=y+373
x=89300+373=89,673

answer:
area of the country A=89,673 Km²
area of the country B=89,300 Km²

To check
The combined land area of the countries A and B is =89,673 Km²+89,300 Km²=178,973 Km²
Country A (89,673 Km²) is 373 Km² more larger than country B (89,300 Km²).
89,673 Km²=89,300 Km²+373 Km²

7 0

3 years ago

You can solve a system of equations by translating it into a matrix,manipulating the matrix until it has eliminated terms,and th

Maurinko [17]

Answer:

True

Step-by-step explanation:

A system of equations can be solved by Translating the system of equations into a matrix by following theses steps

list all coefficients in a single matrix
multiply the coefficient matrix with the variables matrix
enter answers into a new matrix

write out the resulting answer in form of equations.

7 0

2 years ago

I don't think this is correct plz check me

Readme [11.4K]

Answer:

The answer is the first one

Step-by-step explanation:

The cost of an adult ticket is $15

The price of an adult ticket is 1/2 the price of a student ticket plus $8

x is the cost of a student ticket, so

1/2(x) + $8 = $15

8 0

2 years ago

Ezra made cookies for a bake sale. He made 13 cookies in the shape of a dog and 54 cookies in other shapes. What is the probabil

Radda [10]

Answer:

Approximately 19.4%

Step-by-step explanation:

Co. Dogs: 13

Co. Others: 54

13+54=Total Co.

=67.

Co. Dogs: 13/67.

App. 19.4% (For 13 Co.)

App. 1.49% (For 1 Co.)

4 0

2 years ago

ABCD is a rectangle. The length of BD is 8 units, and m angle ABD is 67°. The length of AC is units, and m angle CDB is °.

Marina86 [1]

See the attached picture to better understand the problem
we know that
in rectangle ABCD
AB=CD
and
AD=BC
therefore
the triangle ACD and triangle ABC are congruent
so
BD=AC
BD=8 units

the answer part a) is
BD= 8 units

Part b) Find angle CBD

we know that
∠ABD+∠CBD=90°---------> by complementary angles
so
∠CBD=90-∠ABD-----> 90-67----> 23°
∠CBD=23°

the answer Part b) is
∠CBD=23 degrees

5 0

2 years ago

Read 2 more answers