Algebra Answers

Phindile buys two shirts at a clothing shop and each shirt cost R250 . She also buys three pairs of jeans for R450 each , and receives a 25% (112.50) discount on jeans bought. What is the amount did phindile pay

A company analyses its profits for the three consecutive years, from 2017-2019. The profit made in 2017 is three times that made in 2018 and the profit made in 2019 is R5 million rand more than the profit made in 2012. The total profit for the three years is 80 million. Calculate the profit in each year

A company analyses its profit for three consecutive years, from 2017-2019.
The profit made in 2017 is three times that made in 2018 and the profit made in 2019 is
R 5 million rand more than the profit made in 2012. The total profit for the three years is
R 80 million.
Calculate the profit in each year.

If \\(z_1=3+2i\\) and \\(z_2=4+3i\\) and are complex numbers, find \\(z_1z_2\\)

A patient takes a pill that holds 50 mg of medicine in it. The pill is metabolized, or used up, at a rate of 55% every hour.
a. Rounded to the nearest hundredth, how much of the pill has been used by the body after four hours?

A special event organizer wants to get the word out to 100 000 teens in the area about a concert coming up in three months. By posting the event on the musician’s website, 100 teens in the area will find out about the event in the first week. Research suggests that each of those teens will tell four new teens about the event, and those friends each will tell four more teens about it. How many times does this pattern need to continue until 100 000 teens know about the event?

There is a Covid – 19 Pandemic in the world. This appeared in Ghana
and affected 5 people. Corvid – 19 affects 2 people a day. How long
does it take for there to be 1,000,000 covid – 19 affected people in
Ghana also how many covid – 19 people will there be on day 8

Your friend claims you can use the change – of – base to write the
expression (In x) as a common logarithm. Is your friend correct?
Explain your reasoning.

you purchase 3 squash racquets, 7 pairs of socks and 4 head-bands from a sports shop. You hand the cashier R2500 and receive R250 in change. A squash racquet costs R510 more than a pair of socks, which in turn is half the price of a head-band