Algebra Answers

Use a diagram to represent the following:
1. 1/2-1/8.
2. 3/4-1/2.
3. 1/2-1/8.
4.1/4-1/8.

Find the solution of these problems diagrammatically and algorithmically.
1. 1/5+4/5.
2. 1/5+3/10.
3. 1/3+1/2.
4. 1/3+2/5.
5. 1/4+5/6.

1. What is 2 times 4? will the answer be bigger or smaller than 4? explain your answer.
2.what is half of 4? Will the answer be bigger or smaller than 4? explain your answer.
3.what is half of the answer you got in no.2? Will your answer be bigger or smaller than the answer you got in no.2?
4.what is half of the answer you got in no.3? will the answer be bigger or smaller than the answer you got in no.3?what do you notice by considering your answers no.s 1 to 4? Elaborate.

4.1 Draw the following rectangular prism:
The object has six faces. All faces are squares.

4.2 Suppose they tell you that certain object has six faces.
4.2.Is it possible that the object is a rectangular prism?

4.2.2
Can you be sure that it is actually a rectangular prism? If you
think you cannot be sure, explain why.

Alicia recorded the temperature for five days. When he added the five temperatures together he got some of -7.4°C. If he recorded this number is -8.1 -7.4 5.5 6.2 But was missing one record what was in the missing temperature

The profit earned by a hot dog stand is a linear function of the number of hot dogs sold. It costs the owner $48 dollars each morning for the day’s supply of hot dogs, buns and mustard, but he earns $2 profit for each hot dog sold. Which equation represents y, the profit earned by the hot dog stand for x hot dogs sold?

y=48x−2
y=48x+2
y=2x−48
y=2x+48

kate has$4 more than twice as much as much money joe does. Joe has $16 less than Marcia does. In all they have $220. How much money does Joe have

3(2x + 11) = 9 Reason for each step

6x + 33 = 9 Reason for each step

6x=-24 reason for each step

X=-4 reason for each step


44 - 2(3x + 4) = -18x Reason for each step


44 - 6x - 8 = -18x Reason for each step

-6x + 36 = -18x Reason for each step

36 = -12x Reason for each step


-3 = x Reason for each step

How would you accommodate the different South African languages in teaching fractions?

You have 4 cups of flour.the recipe you making calls for 2/3 cup of flour.estimate: about how many full recipes can you make?at least 2? At least 4? At least 6?