Form two simultaneous equations with the information provided:
10P + 4R = 210, P = no. of boxes of pens, R = number of boxes of rubber bands
10 is the cost of a box of pens; multiply this by P will give you the total cost of all the boxes of pens bought.
4 is the cost of a box of rubber bands; multiply this by R will give you the total cost of all the boxes of rubber bands bought.
We can also say:
P + R = 24, as 24 boxes (cartons) were bought in total.
Solve simultaneously:
P = 24 - R
Sub' this into 10P + 4R = 210 to give:
10(24 - R) + 4R = 210
240 - 10R + 4R = 210
-6R = -30
R = 5
and so:
P = 24 - (5) = 19
19 boxes of pens
5 boxes of rubber bands
5 * 1/4
5/1 * 1/4
5/4
The expression results in an improper fraction.
The answer for this is 25 percent
First of all m<1 + m<2 = m<ACD
Soo we just need to add them.
74 + 36 = 110
So m<ACD = 110 degrees.
<u>GOOD LUCK! :)</u>