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Kipish [7]
3 years ago
12

Nancy is 5 years younger than her brother Stan. Last year she was twice as young as he was. How old is each of them now?

Mathematics
2 answers:
otez555 [7]3 years ago
4 0
Nancy: 5 Stan: 10

5 is 5 years
younger then Stan
And 5 is twice as
young as 10
Svetllana [295]3 years ago
4 0

Answer:

Nancy is 6 years old and Stan is 11 years old now.

Step-by-step explanation:

Let the present age of Stan be x.

Then age of Nancy = y

x - y = 5

Last year she was twice as young as he was

Age of Nancy last year = y-1

Age of Stan last year = x-1

2 × (y-1)= x-1

2y -2 = 5 + y -1

y = 6

x = y + 5 = 6 + 5 = 11

Nancy is 6 years old and Stan is 11 years old now.

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Answer:

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Step-by-step explanation:

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height = 10

dimension =?

let dimension = x

\Rightarrow \frac{10}{x} = \frac{1}{15} \\\\\Rightarrow  150 = x\\\\\Rightarrow x= 150 \ units

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3 years ago
A school has an aquarium in each room. Each aquarium has 2 catfish for every 3 angelfish. How many fish are in an aquarium that
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Jill cuts a piece of cardboard in the shape of a trapezoid.The area of the is 43.5sp cm. If bases are cm and 8.5cm long,what is
boyakko [2]

Answer:

7.25cm

Step-by-step explanation:

Let the complete question be;

<em>Jill cuts a piece of cardboard in the shape of a trapezoid. The area of the is 43.5sp cm. If bases are 3.5cm and 8.5cm long, what is the height.</em>

<em />

Area of a trapezoid = 1/2(a+b)*h

a and b are the parallel sides (bases)

h is the height

Given

a = 3.5cm

b = 8.5cm

A = 43.5 sq.cm

Required

Height h

Substitute the given values into the expression

Area of a trapezoid = 1/2(a+b)*h

43.5 = 1/2(3.5+8.5)*h

43.5 = 1/2 * 12h

43.5 = 6h

h = 43.5/6

h = 7.25cm

Hence the height is 7.25cm

8 0
3 years ago
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grandymaker [24]

Answer:

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Step-by-step explanation:

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Answer:

4,2

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