Algebra Answers

Use the correct language to explain the difference between the
expressions:
“It is the fifth of December”
“You are the fifth in the row”
“I want a fifth of the pizza”
What types of numbers are we dealing with in the above expressions?

Eric’s average income for the first 4 months of the year is $1,450.25, what must be his
average income for the remaining 8 months so that his average income for the year is

Alyssa and Beth go on a bike ride.
In the morning Alyssa cycles 3 times as many km as Beth.
In the afternoon Alyssa cycles 14 km an Beth cycles 48 km.
They have now cycled the same distance.
How many km did Alyssa cycle in the morning?

How much of other chemicals must be evaporated from 400 grams of a hand sanitizer that is 24% alcohol to strengthen it to a hand sanitizer that is 30% alcohol? Correct your answer to the nearest whole number.
Answer: grams

Evaluate 7i(-5+2i)=-14

In your classroom, there are 8 white chairs.There are 2 times many as yellow chairs as white chairs, and the blue chairs are 3 fewer than yellow chairs.By means of a calculations determine how many chairs are in your class.

Expand the brackets and then simplify the following expression 3(2x + y) +6(5 - x)

a company that sells pocket radios makes a profit of R12000 on the first 500 radios sold. Assuming that all prices remain the same, how much profit do you expect to make on selling 7000 radios?

Solve the following system of linear equations
x+ y- 3z+ 2w = 0
2x -y +2z- 3w =0
3x- 2y+ z -4w =0
-4x +y -3z +w =0

This table gives us the price of some TVs according to the length of their diagonals.