Сомпания решила посчитать, сколько можно сэкономить на обеспечении офиса электроэнергией за счет смены памп. Сейчас офис компании потребляет 1000 КВт электроэнергии в месяц. В нем 10 помещений, где установлено 50 ламп. Стоимость 1 кВт - 5,92 руб. Закупцик провел сравнительный анализ 3 типов ламп, он приведен на рисунке. Рассчитайте, сколько сможет сэкономить компания на затратах на обеспечение офиса электроэнергией за год при смене установленных ламп на новые, при условии, что все лампы будут заменены одномоменто. Какив лампы выгоднее использовать для получения максимальной экономии?

Oppgave 2 Når Oslo Børs stenger for dagen er en type aksje verdt 42 kr . I løpet av dagen har aksjen økt i verdi med \( 20 \% \). Hvor mye var aksjen verdt da Oslo Børs åpnet denne dagen?

\( \begin{array}{ll}\text { 2) } 6,5 \% \cdot y=3,3 ; & \text { 4) } \frac{3}{4} \% \cdot y=3 \frac{1}{2}\end{array} \begin{array}{l}\text { 407. Bank goýumçylara her ýylda } 2 \% \text { girdeji berýär. Banka 1) } 20000 \\ \text { man goýan goýumçy; 2) } 30000 \text { man goýan goýumçy bir ýylda näçe girdeji }\end{array} \)

9.1 How much must Peter invest now, at \( 9,5 \% \) p.a. compounded quarterly, if he wants to have \( R 40000 \) after 6 years? Convert \( 20 \% \) p.a. effective to a nominal rate, compounded monthly. Mike opens a savings account with a deposit of \( R 60000 \). He leaves the money in the account for 7 years. The interest rate for the first 3 years is \( 2,7 \% \) p.a. compounded quarterly and for the remaining 4 years it is \( 3,2 \% \) p.a. compounded monthly. How much money will be in Mike's savings account at the end of the 7 -year period? Sarah deposited \( R 6000 \) into her bank account 10 years ago. Six years ago, she withdrew \( R 2000 \). Interest is calculated at \( 7,6 \% \) p.a. compounded monthly. How much money is in the account at present?

hando needs to buy a new Tablet. The new Tablet costs R7 990 . hando does not have the full amount of money available, so she tas decided to buy it using a hire purchase agreement. The terms of he agreement are as follows: \( 15 \% \) per annum simple interest 48 monthly payments Monthly processing fee of R15,50 Determine the monthly amount payable, including interest and fees Sn her \( 29^{\text {th }} \) birthday, Lerato invested R5000 on the Johannesburg stock Exchange. Her shares increased in value by \( 20 \% \) compounded annually. How much would her investment be worth her \( 60^{\text {th }} \) birthday?

3. In un reparto di un'azienda di cosmetici sono presenti tre linee di prodotti: creme, deodoranti e saponette. Su tali prodotti vengono eseguiti controlli di qualità, attraverso specifici test nei laboratori chimici, con un costo settimanale di \( € 4.550 \) \( € \). Il costo viene suddiviso tra le tre linee in proporzione alle ore di produzione e a. numero di prodotti lavorati. I dati sono i seguenti: - Linea creme: ore di produzione 35 ; pezzi lavorati 6.300 - Linea deodoranti ore di produzione 25 ; pezzi lavorati 9.800 - Linea saponette ore di produzione 10 ; pezzi lavorati 3.000 uanto ammonta la quota di costo del controllo di qualità a carico di ciascuna linea?