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goblinko [34]
2 years ago
5

Please help I will give brainliest for honest answers

Mathematics
1 answer:
Vaselesa [24]2 years ago
3 0

Answer:

$408

Step-by-step explanation:

subtract 30 from 540 to get 510

then divide 510 by 5 or divide 510 by 100 then multiply by 20

----------------------------------------------------------------------------------------------------------------

510 divided by 5 is 102

or

510 divided by 100 is 5.1 which then you multiply by 20 to get 102

----------------------------------------------------------------------------------------------------------------

102 is equal to 20% of 510 so you subtract 510 by 102 to get 408

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3) A school's enrollment in 2019 was 692 students. In 2020 they enrolled 852 students. What was the % increase in students from
elena55 [62]

Answer:

D. 23.1%

Step-by-step explanation:

852-692=160    160/692=0.231213873  rounds to 0.231  move decimal over two places to the right to make it percent which is 23.1%

5 0
3 years ago
8 (6× + 5) + 2× equivalent
Licemer1 [7]
8(6x + 5) + 2x
8(6x) + 8(5) + 2x
48x + 40 + 2x
50x + 40
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3 years ago
UNA POBLACION DE CIERTA CIUDAD EN EL AÑO 2000 ERA DE 250,000 HABITANTES CON UNA TASA DE CRECIMIENTO RELATIVO DEL 2% , DETERMINA
Fofino [41]

Answer:

La población que se espera para el 2012, es 317,060

Step-by-step explanation:

Si la población tiene un crecimiento relativo del 2%, entonces cada año, la población es un 2% más grande que el año anterior.

Definamos P(t) = población después de t años

Entonces, si al año t = 0 (que corresponde con el año 2000) la población es A

P(0) = A

Un año después, en t = 1, la población incrementa en un 2%

P(1) = A + (2%/100%)*A = A + (0.02)*A = A*(1.02)

Otro año después, en t = 2, la población incrementa un 2% de vuelta.

P(2) = A*(1.02) + (2%/100%)*A(1.02) = A*(1.02) + 0.02*A*(1.02)

      = A*(1.02)*(1.02) = A*(1.02)^2

Ya podemos notar un patrón, la población en el año t va a ser:

P(t) = A*(1.02)^t

Sabemos que en t = 0 (el año 2000) la población es 250,000

Entonces A = 250,000

P(t) = 250,000*(1.02)^t

Ahora queremos calcular la población en el año 2012

entonces si t = 0 es el 2000

2012 esta representado con t = 12

Reemplazando eso en la ecuación, obtenemos:

P(12) = 250,000*(1.02)^12 = 317,060.4

Como esto es una población tenemos que redondearlo al próximo número entero, como el primer digito después del punto es 4, redondeamos para abajo.

Entonces la población que se espera para el 2012 es: 317,060

5 0
3 years ago
Write an equation that shows the relationship 64% of why is 40
DerKrebs [107]

Answer:

I am not share what the question is, can you please rephrase the question.

Step-by-step explanation:

3 0
4 years ago
The side lenghts of a triangle are 14,15, and x units
iragen [17]

9514 1404 393

Answer:

  1 < x < 29

Step-by-step explanation:

The triangle inequality requires the sum of the two shortest sides exceed the longest side.

<u>When x and 14 are the shortest</u>:

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  x > 1

<u>When 14 and 15 are the shortest</u>:

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Then the requirement for the length of x is ...

  1 < x < 29

_____

<em>Additional comment</em>

The length of the third side of a triangle can be between the difference and sum of the two given sides.

3 0
2 years ago
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