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vitfil [10]
3 years ago
6

4. Jerry currently has an account balance of $1,109.80. His initial deposit on the account was $775 and it earned 2.7% simple in

terest. How long has Jerry held the account? 53 years 37 years 11 years 16 years
Mathematics
2 answers:
lidiya [134]3 years ago
4 0

Answer:

Hey there!

I=PRT

1109.8=775(0.027)T

1109.8=20.93T

53=T

Jerry had the account for 53 years.

Let me know if this helps :)

Lerok [7]3 years ago
4 0

Answer:

16 years

Step-by-step explanation:

Step 1: State what is given:

Current account balance is 1,109.80

Initial deposit is 775

2.7% simple interest

Step 2: Find 2.7% of 775

775 x 0.027 = 20.925

Step 2: Find how much money Jerry has earned from the interest

1,109.80 - 775 = 334.8

Step 4: Divide 334.8 by 20.925

334.8/20.925 = 16

Therefore Jerry has held the account for 16 years

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Mean mode median range please help me
Anit [1.1K]

Answer:

Mean = 44.

Mean is the average.

Add all numbers:

(43 × 3) + (44 × 5) + (45 × 2) + 46

(129) + (220) + (90) + 46

= 485

Divide by number of points:

485 ÷ 11 = 44.090909 (09 repeating)

Round to 44.

Median = 44

Median is the middle-most number.

Line all the values up:

43, 43, 43, 44, 44, 44, 44, 44, 45, 45, 46

'Cross' numbers off from each side until you reach the middle- 44.

Mode = 44

Mode is the number that appears most often. 43 appears three times, 44 appears five, 45 appears twice, and 46 appears once. Five was the greatest reoccurrence. Therefore, 44 is the mode.

Range = 3

Range is the distance between the smallest value and the largest value.

Smallest number: 43

Largest number: 46

46 - 43 = 3

7 0
3 years ago
Ecuación de la hipérbola con centro en (0;0), focos en abrir paréntesis 0 coma espacio menos raíz cuadrada de 28 cerrar paréntes
yaroslaw [1]

Answer:

\frac{y^{2}}{25}-\frac{x^{2}}{3}=1

Step-by-step explanation:

Para resolver este problema debemos tomar en cuenta los datos que nos dan y la ecuación de una hipérbola. Comencemos con los datos:

centro: (0,0)

focos: (0,-\sqrt{28}),(0,\sqrt{28})

eje conjugado = 2\sqrt{3}

por los focos podemos ver que la hipérbola se dirige hacia el eje y, por lo que debemos tomar la siguiente forma de la ecuación de la parábola:

\frac{y^{2}}{a^{2}}+\frac{x^{2}}{b^{2}}=1

de los focos podemos obtener que:

c=\sqrt{28}

y del eje conjugado podemos saber que al dividir la longitud del eje conjugado dentro de 2 obtenemos b, así que:

b=\sqrt{3}

podemos utilizar la siguiente fórmula para obtener a:

c^{2}-a^{2}=b^{2}

si despejamos a en la ecuación obtenemos lo siguiente:

a=\sqrt{c^{2}-b^{2}}

ahora podemos sustituir los valores:

a=\sqrt{(\sqrt{28})^{2}-(\sqrt{3})^{2}}

a=\sqrt{28-3}

a=\sqrt{25}

a=5

así que media vez conozcamos a, podemos sustituir los datos en la ecuación de la hipérbola así que obtenemos lo siguiente:

\frac{y^{2}}{a^{2}}+\frac{x^{2}}{b^{2}}=1

\frac{y^{2}}{(5)^{2}}+\frac{x^{2}}{(\sqrt{3})^{2}}=1

\frac{y^{2}}{25}+\frac{x^{2}}{3}=1

si graficamos la hipérbola, queda como en el documento adjunto.

7 0
3 years ago
A class is made up of 6 boys and 8 girls. Half of the girls wear glasses. A student is selected at random from the class. What i
Aleks [24]
If half the girls wear glasses, then 8/2 or 4 girls wear glasses.
The whole class is 8+6 or 14 kids.
The probability is the number of girls wearing glasses over the total people in the whole class.

Number of girls wearing glasses/ T<span>otal people in class
</span>
4/14
Simplify= 2/7

Hope this helps :)
5 0
3 years ago
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What's proportional reasoning and what does it mean for something to be proportional?
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Proportional reasoning is the ability to compare two things using information given, in math, it is most frequently defined as comparing quantities. For something to be proportional, there has to a constant ration of another quantity.
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3 years ago
A point (-7, -6) is rotated counterclockwise about the origin to map onto (-6, 7). The
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Option D, 270 is the answer

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