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sdas [7]
3 years ago
9

Simplify (-80/-20) -4 4 -40 40

Mathematics
2 answers:
Reil [10]3 years ago
7 0

Answer:

4

Step-by-step explanation:

the negatives cancel and 80/20 equals 4

Alecsey [184]3 years ago
4 0

Answer:

-80/-20=80/20=4

Step-by-step explanation:

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For her new MP3 player, Alicia wants a case that is 3 2/5 in. long. The online store shows case sizes in decimal measurements. W
Ivan

Answer:

C.) 3.4 in.

Step-by-step explanation:

Because I did the test and got it right.

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Gentry poured 23.5 ounces of milk and 7.75 ounces of cream in a mixing bowl.
denpristay [2]
Notice that because the capacity of the bowl is 35.5 ounces, but there has already been 31.25 ounces total added to it (23.5 ounces + 7.75 ounces), all that needs to be done is subtract 31.25 from 35.5:
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3 years ago
Differential equations by separation of variables
MissTica
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

Below is the solution:

xdy/dx = 4y 
<span>xdy = 4ydx </span>
<span>∫ dy/y =∫ 4dx/x </span>
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5 0
3 years ago
Help clear the fractions I need more help
marishachu [46]

Answer:

x = \frac{43}{6}

Step-by-step explanation:

Given

\frac{3}{4} x - 5 = \frac{3}{8}

Multiply through by 8 ( the LCM of 4 and 8 ) to clear the fractions

6x - 40 = 3 ( add 40 to both sides )

6x = 43 ( divide both sides by 6 )

x = \frac{43}{6}

3 0
2 years ago
Show that 3 · 4^n + 51 is divisible by 3 and 9 for all positive integers n.
-BARSIC- [3]

Answer:

Step-by-step explanation:

Hello, please consider the following.

3\cdot 4^n+51=3\cdot 4^n+3\cdot 17=3(4^n+17)

So this is divisible by 3.

Now, to prove that this is divisible by 9 = 3*3 we need to prove that

4^n+17 is divisible by 3. We will prove it by induction.

Step 1 - for n = 1

4+17=21= 3*7 this is true

Step 2 - we assume this is true for k so 4^k+17 is divisible by 3

and we check what happens for k+1

4^{k+1}+17=4\cdot 4^k+17=3\cdot 4^k + 4^k+17

3\cdot 4^k is divisible by 3 and

4^k+17 is divisible by 3, by induction hypothesis

So, the sum is divisible by 3.

Step 3 - Conclusion

We just prove that 4^n+17 is divisible by 3 for all positive integers n.

Thanks

4 0
3 years ago
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