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12345 [234]
3 years ago
5

Manny ordered 16 skateboard wheels. If he sold 4 wheels to Brad, how many skate boards can he put wheels on if each board 4 whee

ls?
Mathematics
2 answers:
alexgriva [62]3 years ago
8 0
It would be 3 cuz 16-4 =12  divide by 4 is 3
Vlad [161]3 years ago
6 0
Brad can only put wheels on 1 skateboard 
Manny can put wheels on 3 skateboards
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A sample of radium has a weight of 1.5 mg and a half-life of approximately 6 years.
pogonyaev

Answer:

0.75 mg

Step-by-step explanation:

From the question given above the following data were obtained:

Original amount (N₀) = 1.5 mg

Half-life (t₁/₂) = 6 years

Time (t) = 6 years

Amount remaining (N) =.?

Next, we shall determine the number of half-lives that has elapse. This can be obtained as follow:

Half-life (t₁/₂) = 6 years

Time (t) = 6 years

Number of half-lives (n) =?

n = t / t₁/₂

n = 6/6

n = 1

Finally, we shall determine the amount of the sample remaining after 6 years (i.e 1 half-life) as follow:

Original amount (N₀) = 1.5 mg

Half-life (t₁/₂) = 6 years

Number of half-lives (n) = 1

Amount remaining (N) =.?

N = 1/2ⁿ × N₀

N = 1/2¹ × 1.5

N = 1/2 × 1.5

N = 0.5 × 1.5

N = 0.75 mg

Thus, 0.75 mg of the sample is remaining.

5 0
2 years ago
Elimination <br> 2x - 5y = 8 <br> x - 3y = -1
ruslelena [56]
X=29 and y=10

You would isolate one of the variables and then plug the expression into the other equation to find the value of one variable. Then you would plug this value into the other equation to determine the value of the remaining variable.

8 0
3 years ago
Will enyone help me answer this question please
SSSSS [86.1K]
You could use 4(division) sign 25 + 3 (division sign) 15 * 10, ok?
6 0
3 years ago
PLEASE HELP ME PLEASE!
maria [59]
They can because of zero property. If we set them equal to zero we get their roots which is 3 and -2. This is the same on the x axis which is goes through. We can mark these points.
4 0
3 years ago
A phone company charges $0.45 for the first minute and $0.35 for each additional minute for a long distance call. Which numerica
Vinvika [58]

0.45+19(0.35)

Total cost $7.10 (0.45+6.65)

8 0
3 years ago
Read 2 more answers
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