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Alenkasestr [34]
3 years ago
5

1) Marcos deseja comprar uma guitarra. Seu amigo possui um e quer vender a vista por R$850,00. Caso Marcos prefira, pode parcela

r em 4 parcelas iguais, com vencimento para 30, 60, 90 e 120 dias, seu amigo aplicará sobre o valor do produto, uma taxa única de 12%. Nessa situação, o custo final da guitarra e o valor de cada parcela são respectivamente: *
1 ponto
a) R$102,00 e R$55,00.
b) R$850,00 e R$212,00
c) R$952,00 e R$238,00
d) R$980,00 e R$245,00.
2) Luiza está em dúvida sobre financiar uma moto nova no valor de R$25.000,00 ou fazer um consórcio. Como o desejo de Luiza em adquirir uma moto é algo que tem a mais de dois anos, ela já dispõe de uma reserva, aplicada na caderneta de poupança, de R$15.000,00. As propostas que lhe foram apresentadas na concessionária são: Financiamento de 36 prestações fixas de R$1.050,00 sem entrada.Financiamento de 36 prestações fixas de R$395,00 com entrada de R$14.000,00.Consórcio de 36 prestações reajustáveis de acordo com a inflação, sendo a primeira parcela no valor de R$800,00, com possibilidade de obter a moto, ao longo do período do consórcio, por meio de sorteio ou lance.Das opções apresentadas a mais vantajosa para Luiza é: *
1 ponto
a) O consórcio, pois, a prestação não é tão alta e ela ainda terá o valor de suas economias para usar em caso de alguma emergência.
b) O financiamento de 36 prestações fixas de R$1.050,00 sem entrada.
c) O financiamento de 36 prestações de R$395,00 fixas com entrada de R$14.000,00.
d) Todas as propostas são equivalentes, Luiza pode escolher qualquer uma delas.
Mathematics
1 answer:
e-lub [12.9K]3 years ago
3 0

Answer:

1)C

2)C

Step-by-step explanation:

Fiz no Classroom!!!

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Answer:

x = -9

Step-by-step explanation:

ANGLES IN A TRIANGLE ADD UP TO 180°

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Todd wants to buy a new video game for $43.31. He has $55.50. The sales tax is 8.5% of the total purchase. Does Todd have enough
sammy [17]

Answer:

  yes

Step-by-step explanation:

We can estimate* that the total price including tax of the game will be less than ...

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Todd easily has enough to pay for the game, including tax.

_____

You can work this more exactly a couple of ways.

  1. Price + tax = 1.085×$43.31 = $46.99 . . . less than Todd's budget

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_____

* For estimating purposes, we like to use numbers that are easy to compute with. 10% is one such number, as it only requires moving the decimal point.

7 0
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The average expenditure on Valentine's Day was expected to be $100.89 (USA Today, February 13, 2006). Do male and female consume
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Step-by-step explanation:

We can express the null and alternative hypothesis as:

H_0: \mu_m=\mu_w\\\\H_1:  \mu_m\neq\mu_w

It is assumed a significance level of 0.05.

The standard deviation of the difference of means is calculated as:

s=\sqrt{\frac{s_m^2}{n_m} +\frac{s_w^2}{n_w} } =\sqrt{\frac{35^2}{40} +\frac{20^2}{30} } =\sqrt{30.625+13.333} =\sqrt{43.958} =6.63

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The degrees of freedom are:

df=n_1+n_2-2=40+30-2=68

The P-value for t=10.11 is P=0, so it is smaller than the significance level. The null hypothesis is rejected.

We can conclude that male and female consumers differ in the amounts they spend.

5 0
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Answer:

it is at least $300000 good luck

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