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shtirl [24]
3 years ago
11

20 POINTS!!!

Mathematics
1 answer:
slamgirl [31]3 years ago
3 0

Try graphing using the x-intercept and y-intercept.


-15x - 5y = 45

Put in x = 0 to get -5y = 45, making y = -9. Point (0, -9) is on the line.

Put in y = 0 to get -15x = 45, making x = -3. Point (-3, 0) is on the line.


-2x + 6y = 6

Put in x = 0 to get 6y = 6, making y = 1. Point (0, 1) is on the line.

Put in y = 0 to get -2x = 6, making x = -3. Point (-3, 0) is on the line.


(We've actually stumbled on the solution since (-3, 0) is on both lines!)


Graph the two lines using the points found above.


The solution is x = -3, y = 0.

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Una sustancia se encuentra en 15°c pero a partir de comienzo de un experimento su temperatura disminuye de manera uniforme a raz
bija089 [108]

Answer:

1= -15 °C

2= 7 minutos y medio

Step-by-step explanation:

1= colo la temperatura va bajando 2 grados cada minuto lo único que hay que hacer es restarle 30 °C a 15 y nos da -15 ° C

2= Solo divides 15 entre 2 y ya.

6 0
3 years ago
GIVING BRAINLIEST FOR BEST ANSWER!
tresset_1 [31]

Answer:

d. fourteen fortieths

Step-by-step explanation:

i believe this is correct.

5 0
2 years ago
Read 2 more answers
Find the value of x then tell whether the side lengths form a Pythagorean triple 6 , 10 , x
masya89 [10]

Answer:

Explanation:

Use the Pythagorean theorem (

a

2

+

b

2

=

c

2

)

Lets label the right triangle such that:

a

=

12

b

=

16

c

=

x

Thus,

12

2

+

16

2

=

x

2

144

+

256

=

x

2

400

=

x

2

√

400

=

x

20

=

x

So our missing side,

c

is

20

We can now say that the sides of our triangle are

12

,

16

,

20

I've included a link that lists a couple of Pythagorean triples (a couple because they are infinitely many).

Step-by-step explanation:

Hope it helpful

3 0
2 years ago
Read 2 more answers
in a class of 37 students,the number of students who like martial art only is double than the number of students who like athlet
yulyashka [42]

Answer:

number of students who like Athletics only = x = 10 students

number of students who like marshal arts only = 2x = 20 students

Step-by-step explanation:

In a class of 37 students, the number of students who like marshal arts only is

double than the number of students who like athletics only. If 3 students like both

and 4 like none of the games, find out how many students like:

i. Marshal arts

ii. Athletics​

Total students in the class = 37

number of students who like Athletics only = x

number of students who like marshal arts only = 2x

Number of students who like both = 3

Number of students who like none = 4

Total = athletics + marshal art + both + none

37 = x + 2x + 3 + 4

37 = 3x + 7

37 - 7 = 3x

30 = 3x

x = 30/3

x = 10

number of students who like Athletics only = x = 10 students

number of students who like marshal arts only = 2x

= 2(10)

= 20 students

5 0
3 years ago
If a table weighs 1.23 pounds what is its weight written as a mixed number??!??
frutty [35]

THE ANSWER IS 1 23/100

(there is a space between the one and 23)

5 0
3 years ago
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