Question
5 pens and 3 rulers cost a total of £1.22
3 pens and 6 rulers cost a total of £1.53
How much does each pen and each ruler cost?
3 pens and 6 rulers cost a total of £1.53
How much does each pen and each ruler cost?
Answers
Rose
PLEASE CAN YOU SHOW THW=E SOLUTION QUICKLY!!
R_scott
A) 5 p + 3 r = 1.22
B) 3 p + 6 r = 1.53
solve the system
... multiplying A) by 2 ... 10 p + 6 r = 2.44
... subtracting B) ... 7 p = 2.44 - 1.53
solve for p , then substitute back to find r
B) 3 p + 6 r = 1.53
solve the system
... multiplying A) by 2 ... 10 p + 6 r = 2.44
... subtracting B) ... 7 p = 2.44 - 1.53
solve for p , then substitute back to find r