S+L=155
1.25S+2.50L=265
System of equations...
L=110
S=45
First let's find the result of the sum:
30 + 40 + 70 = 140
Now let's review the operations of each one:
Jillian added 30and40and then 70:
30 + 40 = 70
70 + 70 = 140
Samuel added 30 and 70 and then 40
30 + 70 = 100
100 + 40 = 140
answer
both are correct.
Conclusion: the order of the factors does not alter the product.
Part a. and part b. are definitely correct
To do part c. you have to take into account that a triangle is 180degrees. So angle 1= 70, angle 2= 65 so angle 1+ angle 2+ angle 7=180degrees
angle 7= 180-65-70=45
Ans: 45degrees
One pencils cost $50
Because you to do 750/15 to get you X
468.
Triangles=108
Base=120
Back=90
Front=150
