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Kobotan [32]
3 years ago
8

A company is expanding its building area from 20,000 square feet to 25,600 square feet. What is the percentage increase of the a

rea of the building space?
Mathematics
2 answers:
tiny-mole [99]3 years ago
5 0

Answer:

28%

Step-by-step explanation:

To increase a number by a certain percentage it is multiplied by a decimal greater than 1. E.g. if we wanted to find 20% more of 20,000, we would do:

20% increase to a number = 1.2

20,000x1.2= 24,000

Original number x Percentage increase = Final number

Since we don't know the percentage increase, but have both other variables, we can rearrange the above equation to solve for it:

Percentage increase = final number/original number

Percentage increase = 25600/20000

Percentage increase = 1.28

Therefore the area was increased by 28%.

Hope this helped!

RideAnS [48]3 years ago
4 0
The answer might be 28%
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Does this represent quntitites that are proportional
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Answer:

B

Step-by-step explanation:

Not all of the pairs represent the same ratio

6 0
2 years ago
Sam practices his guitar for 9 hours each week he practices each song for 3 1/2 hours. What is the greatest number of song he ca
liberstina [14]

Answer:

<em>The greatest number of song he can practice in a week is  2.</em>

Step-by-step explanation:

Suppose, the greatest number of song he can practice in a week is  x

He practices each song for 3\frac{1}{2} hours. So, the total time required for practicing x number of songs = (3\frac{1}{2}*x) hours.

Given that, he practices his guitar for 9 hours each week.

So, the equation will be......

3\frac{1}{2}*x= 9\\ \\ x= 9\div 3\frac{1}{2}\\ \\ x=9\div \frac{7}{2}=9 \times \frac{2}{7}=\frac{18}{7}= 2.571.... \approx 2

<em>(Rounded as the greatest whole number)</em>

Thus, the greatest number of song he can practice in a week is  2.

4 0
3 years ago
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Cual es el valor de un esfero cuando la docena se compra en $7848? Area de un triangulo de 9 unidades de base y 6 unidades de al
aniked [119]

Answer:

a) $654

b) 27 unidades cuadradas

c) 721

Step-by-step explanation:

a) ¿Cuál es el valor de un bolígrafo cuando la docena se compra por $ 7848?

Una docena = 12

Por eso:

12 bolígrafos = $ 7848

1 bolígrafo = $ x

Cruz multiplicar

12 bolígrafos × $ x = 1 bolígrafo × $ 7848

$ x = 1 bolígrafo × $ 7848/12

$ x = $654

b) Área de un triángulo ¿9 unidades de base y 6 unidades de altura?

Área de un triángulo =

= 1/2 × Base × Altura

1/2 × 9 × 6

= 27 unidades cuadradas

c) Cien veces la suma de 4.5 con 2.71

Esto se calcula como:

100 × (4,5 + 2,71)

= 100 × (7.21)

= 721

6 0
3 years ago
Toby needs to save a minimum of $250. If Toby can save $57 a month, how many months will it take for him to save enough? Select
kiruha [24]

Answer:

250  \leqslant 57m

57m \:  \geqslant 250

Step-by-step explanation:

Minimum is a word meaning greater than or equal to.

Hope this helps!

If you have anyother question feel free to ask!

7 0
1 year ago
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