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3 years ago

Estimate the quotients 9.13 divided by 23

Mathematics

2 answers:

Tanzania [10]3 years ago

7 0

Estimated would be .40... is this what you’re asking? Hope this helped! ☺️

djyliett [7]3 years ago

6 0

Answer:

0.4

Step-by-step explanation:

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Solve the system of equations x - 2y = – 7 and -3x – 2y = 29 by combining the<br> equations.

Ksivusya [100]

Answer:

x = - 9, y = -1

Step-by-step explanation:

<em>Given:</em>

<em /> $\begin{bmatrix}x-2y=-7\\ -3x-2y=29\end{bmatrix}$

Solve:

$\mathrm{Substitute\:}x=-7+2y$

$\begin{bmatrix}-3\left(-7+2y\right)-2y=29\end{bmatrix}$

$\begin{bmatrix}21-8y=29\end{bmatrix}$

$\mathrm{For\:}x=-7+2y$

$\mathrm{Substitute\:}y=-1$

$x=-7+2\left(-1\right)$

$x=-9$

$\mathrm{Thus, Answer:x=-9,\:y=-1}$

[RevyBreeze]

5 0

3 years ago

The amount of radioactive uranium changes with time. The table below shows the amount of radioactive uranium f(t) left after tim

aniked [119]

Answer:

$f(t) = 100(0.25)^t$

Step-by-step explanation:

The general exponential function is,

$f(t)=ab^t$

The points given in the table are,

$(0,100),(0.5,50),(1,25)$

Putting $(0,100),(1,25)$ in the general equation, we get

$\Rightarrow 100=ab^0$

$\Rightarrow a=100$

And

$\Rightarrow 25=ab^{1}$

$\Rightarrow ab=25$

Putting the value of a,

$\Rightarrow 100b=25$

$\Rightarrow b=0.25$

Now the exponential function becomes,

$f(t) = 100(0.25)^t$

4 0

3 years ago

Read 2 more answers

PLEASE HELP!!!!!!!! ITIS DUE IN 15 MINUTES.

Yuki888 [10]

Look at the picture.

8 0

3 years ago

Estimated the sum. 523+295

Ghella [55]

The answer is 820 (520+300)

5 0

3 years ago

Read 2 more answers

Answer fast please please

Maurinko [17]

Answer:

A: 200 combinations

Step-by-step explanation:

You multiply 4 by 10 to get 40 and then you multiply 40 by 5 to get 200 options

3 0

4 years ago