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VARVARA [1.3K]
4 years ago
14

Please please please help answer number 6!!!!!!

Mathematics
1 answer:
Virty [35]4 years ago
6 0
The answer i would have is -1.
Hope I helped if i did please give Brainliest!
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Lee watches TV for 3 hours per day. During that time, the TV consumes 150 watts per hour. Electricity costs (10 cents)/(1 kilowa
miss Akunina [59]

Answer:

135 cent

Step-by-step explanation:

Given that:

Cost of electricity = 10cent / 1 kilowatt hour

TV consumption = 150watt per hour

Duration = 3 hours

Cost of operating for 30 days

Total energy usage per day: (150 watt/hr) * 3 hours = 450 watts = 450/1000 = 0.45kW

Total energy for 30 days = 0.45 * 30 = 13.5 Kilowatt

Cost per kilowatt = 10cent

13.5 kw = 13.5 * 10 cent = 135 cent

135 cent = $1.35

7 0
3 years ago
The perimeter of a triangle is 50 ft. What is the value of x?
ioda
The answer is 20.5

Subtract both 7.5 and 22 from 50

50-7.5 = 42.5

42.5 - 22 = 20.5

Hope this helps :)
8 0
3 years ago
Find an equation to show the population of growing bacteria
Oksanka [162]

Answer:

P=1,000(1.4)^t

Step-by-step explanation:

we know that

The equation of a exponential growth function is equal to

P=a(1+r)^t

where

P is the population

t is the time in years

a is the initial value

r is the rate of change

<u><em>Looking at the table</em></u>

For t=0

The value of P=1,000

so

substitute the value of the ordered pair (0,1,000) in the exponential equation

1,000=a(1+r)^0\\a=1,000

The initial value is a=1,000

substitute

P=1,000(1+r)^t

For t=1

The value of P=1,400

so

substitute the value of the ordered pair (1,1,400) in the exponential equation

1,400=1,000(1+r)^1\\r=1.4-1\\r=0.4\\r=40\%

therefore

The exponential equation is

P=1,000(1.4)^t

6 0
3 years ago
Multiples of 12 and 10
Gennadij [26K]
Sorry I had To Use Google

3 0
3 years ago
Read 2 more answers
PLS HELP ME ASAP FOR 7. A and B! (SHOW WORK!!!) + lots of points
Over [174]
So...
ANS of 
7(a)=(30)+(n x 20)        {n=n. of hours}

7(b)= with my mind
3 0
3 years ago
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