2 MILLIONNNNNNNNNNNNNNNNNN
Make an equation:
J = 1/2F - 10
Where 'J' represents Justin's age and 'F' represents his Father's age.
Plug in 12 for J:
12 = 1/2F - 10
Add 10 to both sides:
22 = 1/2F
Divide 1/2 to both sides or multiply by its reciprocal, 2:
F = 44
If you subtract 13- -19, you get 32 degrees
Answer:
The country is saved 1.0647×10^10 kWh of electricity per year.
Step-by-step explanation:
Power saved per household = 60 W - 10 W = 50 W = 50/1000 = 0.05 kW
Power saved in 117,000,000 households = 117,000,000 × 0.05 kW = 5,850,000 kW
Number of hours the bulb is used per week = 35 hours
Number of hours the bulb is used per year (52 weeks) = 52 × 35 = 1,820 hours
Quantity of electricity saved per year = 5,850,000 kW × 1,820 hours = 1.0647×10^10 kWh
Answer:
12c + 14d - 4
Step-by-step explanation:
16d + 20c + 5d -7 - 8c - 7d + 3
Simplify the expression
__________________________
To solve, we need to first take in mind the fact that there are different like terms within this expression. Like terms are numbers or values that end in different symbols, such as variables or exponents. Since we are filled with variables such as c and d. We can do as followed :
Combine the "d" like terms :
16d + 5d - 7d
21d - 7d
14d
Combine the "c" like terms :
20c - 8c
12c
Combine the constants :
-7 + 3
-4
Now add all of the values together to get the final expression.
12c + 14d - 4
