Algebra Answers

To make a certain drink you need to mix 200 millimeters of concentrate with 1.2litres of water. Determine the ratio of concentrate to water how much concentrate will you need if you make up a total of 14 litres of this drink

An element with mass 630 grams decays by 18.8% per minute. How much of the element is remaining after 7 minutes, to the nearest 10th of a gram?

A buyer and seller agreed following about the price of an excavator: The buyer pays

• 10869 € after 4 months and
• 74244 € after 8 months

Calculate the cash price of an excavator using annual discount interest rate of 7.3 %.

23194 € was deposited on 4.4.2006 in a bank account. The interest rate was 3,5 % (p.a.) and the tax at source rate was 30 %. The bank added the accrued interest to the capital at the end of each year. Calculate the accumulated value of the investment on 4.4.2010 when the account was closed.

Susan deposited 49228 € for 31.3. – 28.8. and received net accrued interest of 322.6 €. The tax at source rate was 30 %. Calculate the nominal annual interest rate (= interest rate which contains both investor's and taxman's shares).

John deposited 3.2. 65690 € in a bank account which had an annual interest rate of 2 % (p.a.). The deposit was withdrawn 23.6. Calculate the net accrued interest when the tax at source rate was 30 %.

A train left town a for town b at a speed of 36km/,h. Another train left town b for town a at a speed of 64km/hr. If the two towns were 900km apart, when did the two trains meet

The formula C=59(F−32) expresses the relationship between Fahrenheit​ temperature, F, and Celsius​ temperature, C. Use the formula to convert 59°F to its equivalent temperature on the Celsius scale.