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creativ13 [48]
3 years ago
8

Which expression is equivalent to n + n - 0.18n

Mathematics
2 answers:
Ket [755]3 years ago
5 0
The correct answer is C) n- 0.18
Digiron [165]3 years ago
3 0

Answer:

2n - 0.18n (Answer C)

Step-by-step explanation:

Combine:  n + n.  Result:  2n.

Next, subtract 0.18n.  Result:  2n - 0.18n (Answer C)

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5, 3, 2, 6, 7, 9, 1, 15, 4, 2, 3, 3, 9, 5, 1, ?
Shkiper50 [21]

Answer:

I have no idea thank you for the points

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Please helped this is for my math final.
hammer [34]

Answer:

[-8,8]

Step-by-step explanation:

6 0
2 years ago
How to solve using substitution
DiKsa [7]
X+5 = x^2 - x + 2
0 = x^2 -2x - 3
0 = (x-3)(x+1)

x = -1,3

y = -1 + 5 OR y = 3+5
y = 4 OR y = 8

y = 4,8

So we have two ordered pairs, (-1,4) and (3,8).

Hope that helped!

can you mark my answer as brainliest btw?

4 0
2 years ago
Please help me out with this
Anettt [7]

Answer:

81.75 ft²

Step-by-step explanation:

The area (A) of a trapezoid is calculated using the formula

A = \frac{1}{2} h (a + b)

where a, b are the parallel bases and h is the perpendicular height

Calculate h using the right triangle and the sine ratio

sin30° = \frac{opposite }{hypotenuse} = \frac{h}{10}

Multiply both sides by 10

10 × sin30° = h, thus

h = 5

a = 12 and b = 8.7 + 12 = 20.7, hence

A = \frac{1}{2} × 5 × (12 + 20.7)

   = 0.5 × 5 ×32.7

   = 81.75 ft²

7 0
3 years ago
Bill drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 7 hours. When Bill
RUDIKE [14]

Answer: 315 miles

Step-by-step explanation:

let onward speed = x mph, then distance = 7x

return speed = (x+18) mph, (same) distance = 5(x+18)

equating the two,

7x = 5(x+18)

2x = 90 ==> x = 45 mph

so distance = 7*45 = 315 miles

7 0
3 years ago
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