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GalinKa [24]
3 years ago
7

What’s the difference between nine and twice a number,x, is one

Mathematics
1 answer:
coldgirl [10]3 years ago
6 0
9/2x=1 is probably right
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A radioactive compound with mass of 260 grams decays at a rate of 3.8% per hour. Which equation represents how many grams of the
Dahasolnce [82]

The exponential equation that represents how many grams of the compound will remain after 8 hours is:

B: C=260(0.962)^8

<h3>What is an exponential function?</h3>

A decaying exponential function is modeled by:

A(t) = A(0)(1 - r)^t

In which:

  • A(0) is the initial value.
  • r is the decay rate, as a decimal.

A radioactive compound with mass of 260 grams decays at a rate of 3.8% per hour, hence the equation for the mass after t hours is given by:

A(t) = 260(1 - 0.038)^t

A(t) = 260(0.962)^t

After 8 hours, the amount is given by:

A(t) = 260(0.962)^8

Hence option B is correct.

More can be learned about exponential equations at brainly.com/question/25537936

7 0
2 years ago
Answer this pls asap
Scorpion4ik [409]

Answer:

24.75

Step-by-step explanation:

2x-11 + 6x-7 =180

8x-18=180

8x=198 /8

x=24.75

5 0
3 years ago
Read 2 more answers
One wintry week a ski town got 5 1/3 inches of snow. On monday the town got 2 3/4 inches; on tuesday it got 1 1/2 times as much;
m_a_m_a [10]

Answer: The amount of snow the town get the rest of the week is given by

\frac{5}{24}

Step-by-step explanation:

\text{ Total inches of snow town got in a week }=5\frac{1}{3}=\frac{16}{3}

\text{ Amount of snow it is receiving on Monday}=2\frac{3}{4}=\frac{11}{4}\text{ inches }

\text{Amount of snow it is receiving on Tuesday}=1\frac{1}{2}=\frac{3}{2}\text{ inches }

\text{Amount of snow it is receiving on Wednesday}=\frac{7}{8}\text{ inches }

\text{Amount it is receiving in remaining week is given by}

\frac{16}{3}-(\frac{11}{4}+\frac{3}{2}+\frac{7}{8})\\\\=\frac{16}{3}-\frac{22+12+7}{8}\\\\=\frac{16}{3}-\frac{41}{8}\\\\=\frac{128-125}{8}\\\\=\frac{5}{24}\text{ inches }

So, the amount of snow the town get the rest of the week is given by

\frac{5}{24}\text{ inches }

7 0
4 years ago
How do i explain that y=8.75x is linear
Dafna11 [192]

You could make a frequency chart or draw a graph.

5 0
3 years ago
Read 2 more answers
7. A software company is hiring some programmers to add to its development team. A junior
Stella [2.4K]

Answer:

53,000x+110,000y < 610,000

Step-by-step explanation:

An inequality refers to the relationship between two values that are not equal. With the information provided, the inequality has to indicate that the salary of the junior programmer multiply for the number of junior programmers plus the salary of the senior programmers multiply for the number of them has to be less than 610,000 as the statement says that the total spending on these new positions must be under $610,000:

53,000x+110,000y < 610,000

5 0
3 years ago
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