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guapka [62]
3 years ago
8

Which ordered pair is a solution to this equation? 3x + 7y = 13

Mathematics
1 answer:
Ivan3 years ago
8 0

Answer:

(2,1)

Good Luck!!

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Please help with math
Andru [333]

Answer:

Scale factor  = 3

Step-by-step explanation:

Using similar triangles

AT/AG = AB/AC

9/3 = x+10/3x-10

Cross multiply

3(x+10) = 9(3x-10)

Expand

3x+30 = 27x-90

3x-27x = -90 - 30

-24x = -120

x = 120/24

x = 5

For the larger triangle;

AC = 3x-10

AC = 3(5)-10

AC =15-10

AC = 5

AB = x+10

AB = 5+10

AB = 15

For the scale factor;

Since AT/AG = AB/AC

9/15 = 3/5

3*3/5*3 =3/5

Since the numerator and denominator of the larger triangle is multiplies by the same factor i.3 3. Hence the scale factor is 3

6 0
2 years ago
Original price of a soda: $800 tax 7% selling price: $
Kobotan [32]

Answer:

$856

Step-by-step explanation:

Find 7% of $800 and then add it to $800

3 0
3 years ago
How many times greater is 10 cubic yards than 5 cubic yard? Complete the equation
monitta

Answer:

2 times

Step-by-step explanation:

10 / 5 = 2

   or

5 x 2 = 10

so 10 is 2 times greater than 5

8 0
3 years ago
A computer monitor is listed as being 17 inches. This is the diagonal across the screen. If the screen measures 10 inches in hei
Aneli [31]

diagonal = sqrt(l^ + w^2)

17 = sqrt(10^2 + x^2)

17^2 = 10^2 + x^2

289 = 100 + x^2

189 = x^2

x = sqrt(189) = 13.747

X = 13.75

 width is 13.75 inches

3 0
3 years ago
There are 4 boys and 9 girls on the track team how many students are on the track team altogether
zhannawk [14.2K]

Answer:

13 students

Step-by-step explanation:

4 plus 9 = 13

4 0
3 years ago
Read 2 more answers
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