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Butoxors [25]
3 years ago
14

A candle burns down at the rate of 0.5 inches per hour. The original height of the candle was 8 inches

Mathematics
1 answer:
shtirl [24]3 years ago
8 0

Answer:

16 hours

Step-by-step explanation:

0.5=30 mins of an hour

an hour=1.0

8.0 hours × 2= 16 hours

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2 years ago
in a coordinate plane the midpoint of AB is (4,-3) and A has coordinate (1,5). if B has coordinate (x,y) find the value x+y​
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Answer:

Please check the explanation.

Step-by-step explanation:

The midpoint (a, b) of line joining points (x₁, y₁) and (x₂, y₂)

a = x₁ + x₂ / 2

b = y₁ + y₂ / 2

Given that the midpoint of AB is (4, -3).

i.e. (a, b) = (4, -3)

Given that A has coordinate (1, 5).

i.e. (x₁, y₁) = (1, 5)

We have to determine the coordinates of B.

i.e. (x₂, y₂) = B

Thus,

4 = (1 + x₂)/2

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1 + x₂ = 8

x₂ = 7

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-3 = (5 + y₂)/2

(5 + y₂) = -3 × 2

5 + y₂ = -6

y₂ = -11

so (x₂, y₂) = (7, -3) = B

Thus, the coordinates of B = (x₂, y₂)  = (7, -3)

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          = 7 - 3

          = 4

Hence, the value of x₂ + y₂ = 4

4 0
3 years ago
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