Answer:
4x + 15
Step-by-step explanation:
Let the age of Khairul's uncle y.
From the question given above, the following were obtained:
Khairul's age = x years
In 5 years time:
Khairul's age = x + 5
Khairul's uncle age = y + 5
But from the question given above,
Khairul`s uncle will be 4 times as old as what khairul will be in 5 years. This can be written as follow:
y + 5 = 4(x + 5)
Clear bracket
y + 5 = 4x + 20
Subtract 5 from both side
y + 5 – 5 = 4x + 20 – 5
y = 4x + 15
Therefore, Khairul's uncle present age is 4x + 15
7-12 is like a negative number so it will be -5. And 13-18 would be -5 also.
3*3*3*3=81 so your answer is A
Perimeter of base x height. So, (3+4+5)x6. 12x6=72. 72 is the surface area.
48 cups of water
1. 4x4= 16 (number of cups in 1 gallon)
2. 16x3= 48 (cups in 1 gallon x the number of gallons she needs)
