Answer:
~ <em>50 centimeters of the poster ~</em>
Step-by-step explanation:
Let us plan out our steps, and solve for each:
<em>1. Given the information, let us create a proportionality as such:</em>
<em />
5 = 1 ⇒ x - centimeters of the poster
x 10
<em>2. Now let us cross multiply, and solve through simple algebra for x:</em>
5 * 10 = x,
x =<em> 50 centimeters of the poster </em>
<em></em>
Answer:
y = 30x + 75
Step-by-step explanation:
every month you're paying 30 dollars for a fee.
the 75 dollars is simply the "down payment" so to say.
m is the constant growth or the continuous growth or the charge per month.
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
For ADC you just add those two numbers. your answer would be D) 131
Answer:
20
Step-by-step explanation:
Number of paperback books = 4
Percentage of total books that were paperbacks = 20%
Let total number of books = x
Hence,
20% of total books = paperback books
20% of x = 4
0.2 * x = 4
0.2x = 4
0.2x / 0.2 = 4 / 0.2
x = 20
Total number of books = 20
