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marysya [2.9K]
3 years ago
14

-6) -6x — 10y = 3 12х + 20 y = 0 Elimination or substitution? Solve

Mathematics
1 answer:
Elden [556K]3 years ago
8 0

Answer:

Elimination and y=4 x=6

Step-by-step explanation:

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Solve x to the second power = 144
vfiekz [6]

x ^ 2 = 144

x = 12, x = -12

Check:

12 * 12 = 144

-12 * -12 = 144

6 0
3 years ago
Read 2 more answers
36 is 75 percent of what
Marta_Voda [28]
36 = 75% of what?

36 = 75% of x

36 = 0.75x

0.75x = 36

x = 36/0.75

x = 48

Therefore 36 is 75 percent of 48

Hope this explains it.
5 0
3 years ago
I need help with 1 2 3 please 15 POINTS
ddd [48]
Heya!!!


Answer to your question:

1. No. of squares=5
No. of circles=6

Ratio of squares to circles is 5 to 6

So answer is
B. 5 to 6.

2.No. of students=35
No. of teachers =4

Ratio of students to teachers=No. of students/No. of teachers
=35/4

so answer is
C. 35/4


Hope it helps ^_^

3 0
3 years ago
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Find the PERIMETER and the AREA of the following figure,<br> 16 ft<br> 8 ft<br> 10 ft
Fed [463]

9514 1404 393

Answer:

  • perimeter: 36 +16√5 ft ≈ 71.777 ft
  • area: 288 ft²

Step-by-step explanation:

<u>Perimeter</u>

The perimeter is the total length of all the sides. The length of the horizontal sides is 8 ft + 10 ft = 18 ft. The length of the slant sides can be found using the Pythagorean theorem. For side length s, we have ...

  s^2 = 8^2 + 16^2

  s^2 = 64 +256 = 320

  s = √320 = 8√5

Then the perimeter is ...

  P = 2(8√5 + 18) = 36 +16√5 ≈ 71.777 . . . feet

__

<u>Area</u>

The area is given by the formula ...

  A = bh

where b is the base and h is the height.

  A = (18 ft)(16 ft) = 288 ft²

4 0
3 years ago
Write the equation of a line that is parallel to y=4 and passes through the point (-2,7)
Phoenix [80]

Answer:

Y= 2X+8

Step-by-step explanation:

Compare the given line with y=mx+c will give the slope of the parallel line as 2. Equation of new line in point slope form is y-y1 = m(x-x1). So y-4 = 2 (x+2) will give you Y= 2X+8

3 0
3 years ago
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