All categories

3 years ago

PLZ HELP ME I REALLY NEED IT?!?

Mathematics

1 answer:

labwork [276]3 years ago

4 0

Answer:

he bought 17 book.

You might be interested in

Which statement describing ratios is true?

Scilla [17]

Hey

D cause if you have 3 boys and 4 girls that's a ratio
<span>
Ratio
the quantitative relation between two amounts showing the number of times one value contains or is contained within the othe
</span>
Hoped I Helped

7 0

3 years ago

20.5 into a percent

galben [10]

Answer:

.205

Step-by-step explanation:

6 0

3 years ago

Which fraction is equivalent to this decimal?<br><br> 0.16¯

rewona [7]

Answer: 4/25 ILY <3

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

What is the solution to the system of equations y= -3x+6 y=9

Alex_Xolod [135]

Answer:

Step-by-step explanation:

$\left\{\begin{array}{ccc}y=-3x+6\\y=9\end{array}\right\ \text{put the value of}\ y\ \text{to the first equation}\\\\9=-3x+6\qquad\text{subtract 6 from both sides}\\3=-3x\qquad\text{divide both sides by (-3)}\\-1=x\to x=-1$

4 0

4 years ago

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