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aleksley [76]
2 years ago
6

Slove the following equation.6n - 3(n + 2) + 3(7n + 1) = 0​

Mathematics
1 answer:
Otrada [13]2 years ago
6 0

Answer:

here is my working out to find answer, if u feel that the answer is wrong then do the reverse calculation by putting n value to the equation. hope u understood and stay safe!

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The sum of two numbers is 26. The larger number is 5 more than twice the smaller. What are
babymother [125]

Answer:

Step-by-step explanation:

Let n = the smaller of the two numbers, and since the other number is 5 more than twice the smaller number n, then ...

Let 2n + 5 = the second and larger number.

Since the sum of the two unknown numbers is 26, then we can write the following equation to be solved for n as follows:

n + (2n + 5) = 26

n + 2n + 5 = 26

Collecting like-terms on the left, we get:

3n + 5 = 26

3n + 5 - 5 = 26 - 5

3n + 0 = 21

3n = 21

(3n)/3 = 21/3

(3/3)n = 21/3

(1)n = 7

n = 7

Therefore, ...

2n + 5 = 2(7) + 5

= 14 + 5

= 19

CHECK:

n + (2n + 5) = 26

7 + (19) = 26

7 + 19 = 26

26 = 26

Therefore, the two desired numbers whose sum is 26 are indeed 7 and 19.

7 0
2 years ago
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Help please don’t understand.
sergij07 [2.7K]
Okay so first, area is length times width, so 1/4x*x would be first = 1/4(x^2)=64. Then area or x = 16 or -16

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3 years ago
Which equation has a vertex at (3,-2) and directrix of y = 0?
bija089 [108]

Answer:

<h3>C: y+2=-1/8(x-3)^2</h3>

Edge 2021

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2 years ago
Which expression is equivalent to 36x2 − 100
slavikrds [6]

Answer:

73-1= 72

Step-by-step explanation:

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Using a calculator, find the square root (to the nearest tenth). Square root of 69,081 =
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Square root of 69,081 is 262.832646, so the answer to the nearest tenth will be 262.8. Good luck!
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3 years ago
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