







why percents can be helpful 
20200702 

THERESA pose la question : why percents can be helpful Penny Nom lui répond. 





4sin(2x)cos(2x)+1=0 
20200702 

Sheila pose la question : 4sin(2x)cos(2x)+1=0 Penny Nom lui répond. 





Some strings of 4 digits 
20200626 

Judy pose la question : I wrote previously and need more help. I need to generate a list of 4 digit. Numbers using 09 with no repetitions
I know that there is a 6 followed by a 2. Order does matter
Thank you in advance for your help. Penny Nom lui répond. 





Scale factor 
20200626 

Kinza pose la question : Hi, my question is The perimeter of a triangle is reduced from 75cm to 20cm. What is the linear scale factor? Penny Nom lui répond. 





A word problem involving linear equations 
20200622 

Allie pose la question : The length of a rectangular swimming pool is p m and its width is q m. Its given tht the length of the swimming pool is twice its with. if the perimeter of the swimming pool is 150 m, find the values of p and q
this is in the chapter linear equations Penny Nom lui répond. 





A word problem with fractions 
20200621 

Sthantsa pose la question : I'm stuck with this question, I don't know where to begin because
i really don't Know where to start.
Jessie and Thulani each has a sum of money. Jessie’s amount is 2/5
that of Thulani’s. If Thulani were to give Jessie R198, then his
remaining amount will be 6/8 that of Jessie’s amount.
How much does Jessie have originally?? Penny Nom lui répond. 





1 square cm is 100 square mm 
20200619 

macie pose la question : explain why the conversion factor for cm squared to mm squared is 100 ,and not 10 Penny Nom lui répond. 





390 as a percentage of 800 
20200618 

Yug pose la question : What percentage is 390 grams of 800 grams? Penny Nom lui répond. 





The substitution method 
20200610 

Hardebolar pose la question : simultaneous equation by substitution method
.ab=2/3 a+b=1 2/3 p lui répond. 





Working backwards 
20200605 

Jill pose la question : Emma has a bunch of grapes (1)/(2 ) of it she gave it to her friend and (3)/(4 ) of the remaining grapes she gave it to Gina. There are 4 grapes remaining. So how many bunch of grapes to begin with? Harley Weston lui répond. 





An octagonal pool deck 
20200530 

lauchie pose la question : need help on cut sizes and cut degrees on octagon pool deck for a 24 foot round pool Harley Weston lui répond. 





Percentage profit 
20200530 

jaheem pose la question : A shopkeeper buys an article for 80cents and sold it for $1. Calculate the percentage profit. Penny Nom lui répond. 





A hexagonal planter 
20200528 

Callie pose la question : Hello, I'm having trouble cutting my angles for my 2 x 4 planter. I did exactly as I've watched and read and mine is just not turning out! Ok, so I want 6 or 8 piece hexagon. With an interior of about 10". So I understand that the boards can be any length, but its the 30 degree or 22 1/2" angles that matter. So. How do I figure how long my 2 x 4 is with 6. and another 8 pieces of 2 x 4 to make this planter and at what angle. So does the length determine the angle? Thank you in advance! i don't want to waste anymore wood! And how to figure length, angle and center circumference? Harley Weston lui répond. 





10 of 24 hours as a percentage 
20200527 

Larzy pose la question : what is 10 of 24 hours in percentages Harley Weston lui répond. 





Are all quadrilaterals the same? 
20200527 

eva pose la question : are all quadrilaterals the same? Penny Nom lui répond. 

