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Mariana [72]
3 years ago
14

How many dollars are in Fifty pennies

Mathematics
2 answers:
docker41 [41]3 years ago
6 0
A penny is one cent. So with 50 pennies you would have .50 cents which is half a dollar. ANSWER $0.50 Hope this helps!
andrew11 [14]3 years ago
4 0
1/2. 50 pennies equals $0.50
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Keisha and David each found the same value for cosine theta, as shown below, given Sine theta = Negative StartFraction 8 Over 17
MakcuM [25]

Answer

They are both correct

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Find the cost in dollars of the operating a 60-W lamp continuously for 1 week when the power utility rate is 18 cents/kWh .
Alex
<h2>Answer:</h2>

The cost in dollars is:

                       $ 1.8144

<h2>Step-by-step explanation:</h2>

It is given that:

The 60-W lamp is operated  continuously for 1 week.

We know that:

  1 week=7 days

and 1 day=24 hours

This means that:

     1 week=24×7

i.e.  1 week= 168 hours

Also, 1 kW=1000 W

This means that:

 1 W=0.001 kW

Hence,

 60-W=0. 060 KW

i.e. Power= 0.60 KW

Hence, the energy consumed is:

Energy=Power×Time

i.e.

Energy=0.060×168

i.e.

Energy=10.08 KWh

Also, cost of 1 KWh=18 cents

We know that:

1 cent=0.01 dollar

This means that:

18 cents=0.18 dollar

i.e.

Cost of 1 KWh=$ 0.18

Hence, cost of 10.08 KWh is: $ (0.18×10.08)

i.e.

Cost of 10.08 KWh is: $ 1.8144

7 0
3 years ago
2. If f(x) = -x2(second power)- 5x + 18, what is f(-5)
KiRa [710]

Answer:

-18

Step-by-step explanation:

  1. f(-5)= (-5)2-5(5)+18
  2. 25-43
  3. -18
5 0
3 years ago
X^2 + 5x + 6<br> enter your next step here:
Westkost [7]
You can then factor this out to x^2 + 3x+2x+6

then you can turn this into (x+2)(x+3)
8 0
3 years ago
Which value of x is a solution of the equation 4(x + 3)- 10 = 6(x - 2)?
spayn [35]

Answer:

X=7

Step-by-step explanation:

4(x+3) - 10=6 ( x-2)

multiply

4x +12 - 10 = 6x - 12

4x + 2 = 6x- 12

subtract the positive 2 to the -12

4x = 6x -14

subtract 6x to the 4x

-2x = -14

divide -2 from the -14 (neg divided by a neg = positive)

x= 7

7 0
3 years ago
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