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Assessment
1. Direction: Solve each problem. Write your answers on a sheet of paper.
1. Write an algebraic equation for the cost of 2 1 liters of gasoline, if x pesos
per liter is P2,092.
2. Samantha is y years old now. Write an algebraic equation for Samantha's
age if her age 5 years from now is 17.
3. Leo is g centimeter tall. Ralph's height is 4 less than thrice the height of
Leo Write an algebraic equation showing the difference of Leo's height
when subtracted from Ralph's height will result to 240 centimeters.
4. In three years, the price of a new model of an S6-mobile phone will be six
more than twice its current price. If the projected price of the new S6 phone
is 240.000, what algebraic equation to express its current price?
5. Roman is twice as old as Mavic. Jaypee is 8 years older than Romar. Write
an algebraic equation showing that twice the sum of Romar and Mavic age
will result to Jaypee's age.​

Sagot :

Step-by-step explanation:

1.

x = cost of gasoline per liter

TC = total cost of gasoline

TC = 21x

2.

y = Samantha's age

x = Samanta's age now (17)

y = x + 5

3.

let:

g = Leo's height

r = Ralph's height

1st eq: r = 3g - 4

2nd eq: r - g = 240

g = r - 240

4.

let:

x = current price

y = price 3 yrs from now

y = 6x + 3

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