Answer:

Step-by-step explanation:
Eqn. 1 ----> 4y = x
Eqn. 2 ----> 5x-10y = -50
(Simplifying eqn.2 further)


(Substituting the value of x from eqn. 1)



Now, substituting the value of y in eqn. 1 ,

Temp1 = 60
Temp2 = 75
Temp2 - Temp1 = 15
Difference = (Temp2 - Temp1) / Temp1
Difference = 15 / 60 = 1 / 4 = 0.25
Percentage difference = difference * 100% = 0.25 * 100% = 25%
Do you need an expression. if so you identify pencils by the value
Answer:
22
Step-by-step explanation:
(4 x 4) + (3 x 2) = 16 + 6 = 22
Well, the sequence is well it is being multiplied by -1/2.
Hope this helps, if you need more help respond.