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Usimov [2.4K]
3 years ago
13

−6x+4y=2

Mathematics
1 answer:
Tresset [83]3 years ago
7 0
The second one 3x-2y=-1 the answer get one because I have negative 2 than u add 3 to that negative 2 it get 1
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The perimeter of a rectangle is 48 cm. The length is 6cm less than twice the width. Which system would model this situation and
fenix001 [56]
The easiest way to solve this question would be to subtract the 6 from the 48 which results in 42. Then because the length is twice it’s width we divide the 42 by 3 which gives us 14. Therefore the width is 14 and the length is double of fourteen which is 28
7 0
4 years ago
A. True/False
ra1l [238]

Answer:

True

Step-by-step explanation:

x^{2} -6x=9

subtract 9 from both sides

x^{2} -6x-9

<em>plz mark me brainliest.</em> ;)

5 0
3 years ago
Write the related series for the finite sequence 3, 7, 11, ..., 27. Then find the sum
sweet [91]

Answer:

The sum =105

Step-by-step explanation:

It is given that, finite sequence 3, 7, 11, ..., 27.

<u>Points to remember</u>

1). For a finite sequence sum of n term is given by

Sum  = n/2[first term + last term]

2). nth term of of an AP

tₙ = a + (n - 1)d

Where a - First term

d - common difference

<u>To find the number of terms in the given sequence</u>

Here a = 3 and d = 7 - 3 = 4

tₙ = a + (n - 1)d

27  = 3 + (n - 1)*4

4(n -1) = 27 - 3 = 24

n - 1 = 24/4 = 6

n = 6 +1 =7

<u>To find the sum</u>

Sum  = n/2[first term + last term]

 = 7/2[3 + 27]

 = 7/2[30] = 7 * 15

 = 105

8 0
3 years ago
Kevin plans to put concrete on a rectangular portion of his driveway. The portion is 10 feet long and 3 inches high. The price o
N76 [4]
The answer is 8 feet

1 ft = 12 in
1 in = 0.083 ft

1 yd = 3 ft
1 yd³ = 27 ft³


We know:
l = 10 ft
h = 3 in = 3 * 0.083 ft = 0.25 ft
w = ?
The volume of a rectangular concrete is:
V = l * w * h
V = 10 ft * w * 0.25 ft
V = 2.5w ft²

The price is <span>$98 per cubic yard:
$98/1yd</span>³ = $98/27ft³ = $3.63/ft³<span>

</span>The price is $3.63 per cubic feet.
<span>The total cost of the concrete Keven needs is $72.59:
</span>V * $3.63 = $72.59
2.5w * 3.63 = 72.59
9.075w = 72.59
w = 72.59 / 9.075
w = 7.99 ≈ 8 ft
5 0
3 years ago
Is 26 divisible by 2
sergij07 [2.7K]
Yes because 26 is an even number
3 0
4 years ago
Read 2 more answers
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