suzisu
Feb 9, 2011, 08:44 AM
We are doing some sponsored challenges. We are sponsored for each correct answer. All money goes to children's charity work. We're at a loss with the maths! I'm doing a home tuition course, but I still don't understand a lot of areas.
It doesn't matter how many are in a group or who helps you. We have answered over half the questions but are stuck on some of them, others we are not sure about the answers we have come up with. Would appreciate help to any of the questions below. Thanks.
1.
Solve the equation, give your answer as a fraction in its lowest terms:
2x – 5=7-6x
We got -1/3 but that seems wrong!?
2.
Solve the equation, give your answer as a fraction in its lowest terms:
x-2= 4x+7/6 (the whole part 4x+7 is over the 6)
Some of us got 3 and others got 1/6, so we need help!
3.
Y is directly proportional to x
If y= 10 when x=-5 what is the value of y when x =30. The answer should be a number.
4.
This question is about plotting two points and drawing the straight line through them. Which two options are correct instructions for plotting two points which can then be used to draw the line y=2x+5. Select one or more.
A) Plot the points (1.3) and (2,-1)
b) Plot the points (1.3) and (1, 7)
c) Plot the point (-2, 0) trace 1 unit horizontally to the right of this and plot the second point. D) Plot the point (5, 0). Trace 1 unit horizontally to the right of this and 2 units down and plot the second point.
E) Plot the point (0.5) Trace 2 units horizontally to the right of this and 4 units down and plot the second point.
F) Plot the points (1, 2) and (2, 1)
5.
Select the option that is the equation
y=2x-2
rearranged to make x the subject of the equation.
Select one:
x=y+1 or x=-y/2+1 or x=-y+1
or x=-y/2-2 or x=y/2=1
or x=y-2 or x=-y-2
It doesn't matter how many are in a group or who helps you. We have answered over half the questions but are stuck on some of them, others we are not sure about the answers we have come up with. Would appreciate help to any of the questions below. Thanks.
1.
Solve the equation, give your answer as a fraction in its lowest terms:
2x – 5=7-6x
We got -1/3 but that seems wrong!?
2.
Solve the equation, give your answer as a fraction in its lowest terms:
x-2= 4x+7/6 (the whole part 4x+7 is over the 6)
Some of us got 3 and others got 1/6, so we need help!
3.
Y is directly proportional to x
If y= 10 when x=-5 what is the value of y when x =30. The answer should be a number.
4.
This question is about plotting two points and drawing the straight line through them. Which two options are correct instructions for plotting two points which can then be used to draw the line y=2x+5. Select one or more.
A) Plot the points (1.3) and (2,-1)
b) Plot the points (1.3) and (1, 7)
c) Plot the point (-2, 0) trace 1 unit horizontally to the right of this and plot the second point. D) Plot the point (5, 0). Trace 1 unit horizontally to the right of this and 2 units down and plot the second point.
E) Plot the point (0.5) Trace 2 units horizontally to the right of this and 4 units down and plot the second point.
F) Plot the points (1, 2) and (2, 1)
5.
Select the option that is the equation
y=2x-2
rearranged to make x the subject of the equation.
Select one:
x=y+1 or x=-y/2+1 or x=-y+1
or x=-y/2-2 or x=y/2=1
or x=y-2 or x=-y-2