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4 years ago

I’m confused could you guys help me with this

Mathematics

1 answer:

yawa3891 [41]4 years ago

5 0

The student council must have sold 314 tickets to the dance.

1,020.50 / 3.25 = 314

Hope I could help! Brainliest is greatly appreciated :)

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Solve the differential equation.<br><br> dx/dt = 1 - t + x - tx

dem82 [27]

$\displaystyle\frac{dx}{dt} = 1 - t + x - tx\ \Rightarrow\ \frac{dx}{dt} = 1(1- t) + x(1 - t) \ \Rightarrow \\ \\ 
\frac{dx}{dt} = (1+x)(1 - t) \ \Rightarrow\ \int \frac{dx}{1+x} = \int (1 - t)\ dt\ \Rightarrow \\ \\ \textstyle
\ln|1 + x| = t - \frac{1}{2}t^2 + C\ \Rightarrow\ |1 + x| = e^{t - t^2/2 + C }\ \Rightarrow \\ \\
1 + x = \pm e^{t - t^2/2} \cdot e^C\Rightarrow \\ \\ x = -1 + Ke^{t - t^2/2},\ \text{where $K$ is any nonzero constant.}$

8 0

3 years ago

Help !! No work is needed to be shown

o-na [289]

Step-by-step explanation:

By Law of Indices, a^m / a^n = a^(m-n).

Therefore a² / a⁸ = a^(-6).

x = -6.

5 0

3 years ago

13/20 , 11/15 , 5/8, 7/12 from least to greatest

Sveta_85 [38]

Answer:

Least 2 Greatest:

7/12, 5/8, 13/20, 11/15

Step-by-step explanation:

Googled it

Plz say thxs and rate me!

Yours Truly.

5 0

3 years ago

Torri had $20 to buy a birthday present for her dad. She decided to buy a DVD for $18. The sales tax is 7 percent. Does she have

vesna_86 [32]

First, we need to calculate the cost of the sale tax. To do it, we are going to convert the sale tax from percentage to fraction by dividing it by 100, and then we are going to multiply the cost of the DVD by the sale tax:

$Sale.Tax=\frac{7}{100}$

Now, we can multiply the cost of the DVD by the sale tax to find the cost of the sale tax:

$Cost.Sale.Tax=18(\frac{7}{100)} )=9(\frac{7}{50} )=\frac{63}{50} =1.26$

Now that we know that the sale tax is $1.26, we are going to add the cost of the sale tax to the cost of the DVD and check if that sum is less or equal than Torri's money (20$):

$Total.Cost=18+1.26=19.26$

Since $19.26 $\leq$ $20, we can conclude that Torri has enough money to buy the DVD. In fact, Torri will end with a change of $0.74 after buying the DVD.

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3 years ago

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How many times larger is 2 x 1012 than 5 x 106?

Marysya12 [62]

D it the answer you have to multiply each one

4 0

4 years ago

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