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kenny6666 [7]
3 years ago
9

A radioactive substance decays at a rate of 3.4% per day. If it starts at 200 grams, how

Mathematics
1 answer:
Goshia [24]3 years ago
3 0

Answer: 9

Step-by-step explanation:

Since the percent is decaying, you subtract 3.4 from 100, which gets you 96.6

200(0.966)^9 gets you 146.5 which is less than 150

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the length of a swimming pool is 22 ft. the width is 40 ft. if the volume of the pool is 2,500 ft, which equation would you use
pochemuha
As we know that volume is three dimensional so we will multiply width, length and depth 
Now as we have to find the depth of the pool so
Volume= length*width*depth
depth=Volume/(length*width)
d=2500/(40*22)
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7 0
3 years ago
Someone please help me!!
Phoenix [80]

Answer:

x=6

UV=40

WV=40

UW=30

Step-by-step explanation:

GIVEN UV=WV

6X+4=40

X=6

NOW PUT X=6 in WV AND UW

6 0
3 years ago
A cubic inch of water weighs 0.036 pound. Which of the following rational numbers is equal to the weight of a cubic inch of wate
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2 years ago
The sum of three consecutive even integers is -78. What is the smallest integer? Show all working outs (5)
svet-max [94.6K]

Answer:

The smallest integer is -27 and the integers are -27, -26, and -25

Step-by-step explanation:

We can represent this with:

x + x - 1 + x - 2 = -78

Simplify.

3x - 3 = -78

Add 3 to both sides.

3x = -75

Divide both sides by 3.

x = -25

So, the first integer is -25.

Subtract two to get the smallest integer.

-25 - 2 = - 27

3 0
3 years ago
If y=1/4 when x=5, find y when x=7, given that y directly with x
mariarad [96]

Answer:

7/20

Step-by-step explanation:

Since y varies directly with x, the ratio of y to x is proportional.

... y / 7 = (1/4)/(5)

... y / 7 = 1 / 20 . . . . simplify

... y = 7/20 . . . . . multiply by 7

3 0
3 years ago
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