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kap26 [50]
3 years ago
5

Benny wants to buy a new video game that costs $49.95. He already saved $24.65, and his aunt gave him $15 for mowing her lawn. H

ow much more money does Benny need to buy the video game?
Mathematics
1 answer:
Art [367]3 years ago
6 0

Answer:

$10.30

Step-by-step explanation:

X = 49.95 - (24.65 + 15)

x = 49.95 - 39.65

x =   10.30

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PLEASE HELP!! 1 question 10 points
Thepotemich [5.8K]
67-27= 40
40 x 2= 80
just reverse the steps
7 0
3 years ago
Debbie buys a tree for the holidays. She would like to determine the amount of space it will take up in her living room. The tre
Rina8888 [55]

Answer:

Volume = 200.96 cubic feet

Step-by-step explanation:

Volume of a cone is given by the formula   V=\frac{1}{3}\pi r^2 h

Where r is the radius and h is the height

Given r = 4 and height is 3 times that. So height is 4*3 = 12

Plugging these into the formula we get:

Volume of Cone =  \frac{1}{3}\pi (4)^2 (12)\\=\frac{1}{3}(3.14)(16)(12)\\=200.96

Thus, Volume = 200.96 cubic feet

3 0
3 years ago
The radioactive isotope radium has a half-life of 1,600 years. The mass of a 100-gram sample of radium will be______ grams after
Olenka [21]
To solve this we are going to use the half life equation N(t)=N_{0} e^{( \frac{-0.693t}{t _{1/2} }) }
Where:
N_{0} is the initial sample
t is the time in years
t_{1/2} is the half life of the substance
N(t) is the remainder quantity after t years 

From the problem we know that:
N_{0} =100
t=200
t_{1/2} =1600

Lets replace those values in our equation to find N(t):
N(200) =100e^{( \frac{(-0.693)(200)}{1600}) }
N(200)=100e^{( \frac{-138.6}{1600} )}
N(200)=100e^{-0.086625}
N(200)=91.7

We can conclude that after 1600 years of radioactive decay, the mass of the 100-gram sample will be 91.7 grams.

8 0
3 years ago
I don’t understand what the answer is
lina2011 [118]

Answer:

3.14

Step-by-step explanation:

7 0
3 years ago
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If there are 10 South American butterflies and you're comparing 3:2 and 2 is European birds and 3 is South American birds how ma
zvonat [6]
So 3:2
and there are 10 south american butterflies then it would be 10/3 =? and that number *2
3 0
3 years ago
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