Express each situation in algebraic form.

11. Dulce buys 5 pencils for P10.50 each and pad papers for P14.00 each. She gives the cashiers a P500.00 bill. _______________________
12. Julia is B years old. After fifteen years, she will be twenty-six years old. Find the age of Julia in terms of B. _______________________

III. Directions: Write the numerical expression and then solve.

13. Mrs. Amor bought 6 packs of 1kg of sugar for P336.00 and 4 permanent markers at P17.00 each. How much is the total cost of the items she bought? _______________________

14-15. Jimmy went to the department store to buy 3 face towels at P79.00 each and 2 pairs of socks for P120.00 each. How much was her change from P1,000.00? (2 points) _______________________​


Sagot :

Answer:

11. 5(x+y) =500

12. B + 15 = 26

13. x + 4y = z

14-15. 3x+2y = 1000

Step-by-step explanation:

13. given:

x = price of 6 packs of 1kg. sugar = 336

y = price of a permanent marker = 17

find:

z = ?

solution:

x + 4y = z [substitute the values of x and y]

336 + 4(17) = z [multiply by 17 by 4, then perform the operation]

404 = z

Therefore, the total cost of the items she bought is ₱404.00.

14. given:

x = price of a face towel = 79

y = price of a pair of socks = 120

solution:

3x+2y = 1000 [substitute the values of x and y]

3(79) + 2(120) = 1000 [multiply 79 by 3 and 120 by 2]

237 + 240 = 1000 [perform the operation]

477 = 1000 [transpose 477]

1000 - 477 = 523

Therefore, her change from ₱1000.00 is ₱523.00.