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fomenos
2 years ago
9

Solve using substitution y=2 x+10y=17 answer is an ordered pair

Mathematics
2 answers:
Ahat [919]2 years ago
6 0

Answer:

(- 3, 2 )

Step-by-step explanation:

y = 2 → (1)

x + 10y = 17 → (2)

Substitute y = 2 into (2)

x + 10(2) = 17

x + 20 = 17 ( subtract 20 from both sides )

x = - 3

solution is (- 3, 2 )

Anarel [89]2 years ago
3 0

Answer:

x = -3

Step-by-step explanation:

x+10y=17

x+10(2)=17

x+20=17

 - 20   - 20

-----------------

x = -3

the ordered pair is x=-3, y=2, (-3,2)

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The perimeter of rectangular park is 450m.the length of the sides is in the ratio 3:2.find the area of the rectangle
matrenka [14]

Answer:  12,150 m²

<u>Step-by-step explanation:</u>

The ratio is 3:2 which means

Length (L) = 3x

Width (w) = 2x

Perimeter (P) = 2L + 2w

              450 = 2(3x) + 2(2x)

              450 = 6x + 4x

              450 = 10x

                45 = x

                                      L = 3x                w = 2x

                                         = 3(45)               = 2(45)

                                         = 135                  = 90

Area (A) = L × w

              = 135 × 90

              = 12,150

6 0
3 years ago
If x = 3y^4 and y = s/ 2x^3, show that s = 54y^13.
Solnce55 [7]

Answer:

see explanation

Step-by-step explanation:

Given

y = \frac{s}{2x^3} ← multiply both sides by 2x³

2x³y = s ← substitute x = 3y^{4} into left side, then

2(3y^4)^{3} y = s, thus

s = 2 × 3³ × y^{12} y

  = 2 × 27 × y^{(12+1)}

  = 54y^{13}

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4 years ago
A. The middle value of a set of data arranged in numerical order is the​
Effectus [21]

Answer:

Median

Step-by-step explanation:

Median is the number present in the middle when the numbers in a set of data are arranged in ascending or descending order.

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3 years ago
4 15/16+7 3/4 simplest form
stealth61 [152]
the answer is 203/16 or 12.6875
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4 years ago
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user100 [1]
Let x be the cost of gum 20 years ago.
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3 years ago
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