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Alexus
16 days ago
5

The average height of a class of 18 students is 105 cm After arrival of 7 new students the

Mathematics
1 answer:
Svet_ta [12.7K]16 days ago
3 0

Total students enrolled = 18 + 7 = 25

Mean height of these 25 students = 105 - 5 = 100 cm


Total height of all students combined = 100 x 25 = 2500cm


Final answer: 2500cm

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In 2010, Rafik bought a house. In 2015, Rafik sold the house to Bianca. He made a 20% profit on the sale. In 2019, Bianca sold t
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Answer:

£170,000

Step-by-step explanation:

En 2010, Rafik adquirió una casa. Supongamos que el precio de compra fue $x. En 2015, Rafik vendió la casa a Bianca obteniendo un 20% de ganancia. Esto se traduce en 20% de x lo que equivale a 0.2 × x = 0.2x. Por tanto, Rafik vendió la casa a Bianca por x + 0.2x = 1.2x. Bianca compró la casa a 1.2x.

La casa fue vendida por Bianca en 2019 con una pérdida del 5%. Esto implica que el 5% de pérdida equivale a 0.05(1.2x) = 0.06x.

Por consiguiente, la venta de la casa por Bianca se realizó a 1.2x - 0.06x = 1.14x. Dado que la casa se vendió por £193,800.

⇒ 1.14x = 193,800

x = 193,800/1.14

x = £170,000

Rafik pagó £170,000 por la casa en 2010.

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1 month ago
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2 months ago
Chelsea is graphing the function f(x) = 20()x. She begins by plotting the initial value. Which graph represents her first step?
babunello [11817]

we have the function

f(x)=20(\frac{1}{4})^{x}

we understand that

In the context of the exponential function represented as

f(x)=a(b)^{x}

a signifies the initial value

b denotes the base

x represents the exponent

The initial value indicates the function's value when x equals zero

in this scenario

for x=0

f(0)=20(\frac{1}{4})^{0}

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the initial value corresponds to the point (0,20)

thus

the solution is displayed in the accompanying figure

6 0
1 month ago
Read 2 more answers
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