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2 years ago

Devaughn's age is two times Sydney's age. The sum of their ages is 18. What is Sydney's age?

Mathematics

2 answers:

emmainna [20.7K]2 years ago

8 0

Answer:

Sydney's Age is 6

Step-by-step explanation:

6 x 2 = 12

12 + 6 = 18

Lesechka [4]2 years ago

8 0

Answer:

Sydney is 6

Step-by-step explanation:

You get this by dividing 18 by three, as one set of 6 is Sydney while tcice that is her brother.

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Dennis stood on a 9 foot ladder to measure the sunflower. How much taller is the tallest sunflower than the ladder?

Shalnov [3]

Answer:

See Explanation

Step-by-step explanation:

Given

$Ladder = 9ft$

$Tallest\ Sunflower = x$

Required

How much taller is the tallest

To get this, we simply calculate the difference between the height of the tallest sunflower and the ladder.

i.e.

$Difference = Tallest\ Sunflower - Ladder$

$Difference = x - 9$

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If for instance, the tallest is 13ft, then it is 4ft taller.

Because:

$Difference = 13ft - 9ft$

$Difference = 4ft$

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mart [117]

Answer:

5 nights

Step-by-step explanation:

Solve the inequality:

90x + 90(0.1)x + 12x + 30 $\leq$ 600

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