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Katarina [22]
4 years ago
5

Which value of x makes this equation true?

Mathematics
1 answer:
Anni [7]4 years ago
3 0
First, solve for x by adding 8 to each side. 
-8 + x = 0
+8        +8 

x=8 makes the equation true. 

The answer is D. 8
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Gemma recently rode her bicycle to visit her friend who lives 6 miles away. On her way there, her average speed was 16 miles per
DochEvi [55]

first speed --- x mph

return speed -- x+16 mph

6/x + 6/(x+16) = 1

times each term by x(x+16)

6(x+16) + 6x = x(x+16)

x^2 + 4x - 96 = 0

(x-8)(x+12) = 0

x = 8 or x is a negative

her first speed was 8 mph

her return speed was 24 mph

check:

6/8 + 6/24 = 1 , that's good!

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3 years ago
Tristan has 45 apples and 20 pears that he is putting into gift baskets. Each basket will have the same number of apples and pea
const2013 [10]

i think 7 but i am not very sure

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The probability that a given urine sample analyzed in a pathology lab contains protein is 0.73 (event A). The probability that t
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5 0
3 years ago
Which is the graph of the linear inequality 1/2 x-2y>-6 ?
larisa86 [58]

Answer:

<h2>Your Answer is C!!!!!!!!!</h2>

Steps:

\frac{1}{2} x-2y>-6

Add 2y to both sides:

\frac{1}{2} x-2y+2y>-6+2y

Simplify:

\frac{1}{2}x>-6+2y

Multiply both sides by 2:

2·\frac{1}{2}x>-2·6+2·2y

Simplify:

x>-12+4y

5 0
3 years ago
I've tried to get the answer for this 13 times now (not joking), plzzz help: write a formula that represents the number of peopl
gtnhenbr [62]

Answer:

  • 2820 seats
  • aₙ = 3n + 9

Step-by-step explanation:

<u>This is an AP with:</u>

  • The first term a₁ = 12
  • Common difference d = 3
  • Number of terms n = 40

<u>Number of the seats:</u>

  • Sₙ = 1/2*n(a₁ + aₙ) = 1/2n(2a₁ + (n - 1)d)
  • S₄₀ = 1/2*40(12*2 + 39*3) = 2820 seats

<u>Formula of nth term:</u>

  • aₙ = a₁ + (n - 1)d
  • aₙ = 12 + (n - 1)*3 = 12 + 3n - 3 = 3n + 9
  • aₙ = 3n + 9

6 0
3 years ago
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