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2 years ago

I’ve got this and one more!!!

Mathematics

2 answers:

lisabon 2012 [21]2 years ago

5 0

$Area:500{ m}^{2}$

babymother [125]2 years ago

5 0

Answer:

The area of Rectangle = 500 m²

Step-by-step explanation:

perimeter of rectangle = 2(l + b)

l- Length

b - Breadth

It is given that length of rectangle is 5 times the breadth.

Let 'x' be the width of rectangle, then length = 5x

To find the value of x

Perimeter = 2(l + b) = 120

2(5x + x) = 120

2 * 6x = 120

6x = 120/2 = 60

x = 60/6 = 10

To find the length and breadth

Breadth = x = 10

Length = 5x = 5 * 10 = 50

To find the area

Area = length * breadth = 50 * 10 = 500 m²

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3 years ago

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3 years ago

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olya-2409 [2.1K]

The coffee shop used 52 pounds of Type A coffee.

Step-by-step explanation:

Cost of Type A coffee per pound = 5.25

Cost of Type B coffee per pound = 4.10

Total pounds used in blend = 142

Total cost = 642.00

Let,

x be the pounds of Type A coffee used

y be the pounds of Type B coffee used

According to given statement;

x+y=142 Eqn 1

5.25x+4.10y=642.00 Eqn 2

Multiplying Eqn 1 by 4.10

$4.10(x+y=142)\\4.10x+4.10y=582.20\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(5.25x+4.10y)-(4.10x+4.10y)=642.00-582.20\\5.25x+4.10y-4.10x-4.10y=59.80\\1.15x=59.80\\$

Dividing both sides by 1.15

$\frac{1.15x}{1.15}=\frac{59.80}{1.15}\\x=52\\$

The coffee shop used 52 pounds of Type A coffee.

Keywords: linear equation, elimination method

Learn more about elimination method at:

#LearnwithBrainly

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2 years ago

Lauren has a bouquet of flowers. 1/5 of the flowers are red. 3/10 of the flowers are white. The rest are yellow. Lauren’s bouque

ss7ja [257]

Answer:

36 flowers

Step-by-step explanation:

Given

$Red = \frac{1}{5}$

$White = \frac{3}{10}$

$Yellow = 18$

Required

Determine the number of flowers

First, we need to determine the fraction of flowers that are yellow;

$R + W + Y = 1$

$\frac{1}{5} + \frac{3}{10} + Y = 1$

$\frac{2+ 3}{10} + Y = 1$

$\frac{5}{10} + Y = 1$

$Y = 1 - \frac{5}{10}$

$Y = \frac{10 -5}{10}$

$Y = \frac{5}{10}$

$Y = \frac{1}{2}$

Let the number of flowers by N;

The yellow flowers can be represented as;

$18 = \frac{1}{2} * N$

Solve for N

$N = \frac{18 * 2}{1}$

$N = \frac{36}{1}$

$N = 36$

5 0

3 years ago