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irga5000 [103]
3 years ago
8

Solve this equation, and show work. worth 40 points.

Mathematics
1 answer:
ioda3 years ago
7 0

Answer:

r=-3/5=-0.6

Step-by-step explanation:

We have the equation:

6^{-3r}=6^{2r+3}

Since their bases are the same, the exponents must be equivalent. So:

-3r=2r+3

Solve for r, subtract 2r from both sides:

-5r=3

Divide both sides by -5:

r=-3/5=-0.6

So, the value of r is -3/5.

And we're done!

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Step-by-step explanation: first multiply 8 times 1.25 then multiply 5 times 1.75 then add both of your numbers and put the decimal point back

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A new bank customer with $3,500 wants to open a money market account. The bank is offering a simple interest of 1.6%.
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The sum of two numbers is 30. The difference of twice the larger number and three times the smaller number is 5. What is the pos
natali 33 [55]
Let’s give these two numbers variables
Let ‘a’ be the larger number
Let ‘b’ be the smaller number

Now from the question we know:
a + b = 30 or a = 30 - b
2a - 3b = 5

Now, let’s plug the first equation into the second to find ‘b’:

2(30 - b) - 3b = 5
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Now we solve for ‘a’:
a = 30 - b
a = 30 - 11
a = 19

Now the question asks for the positive difference between the two numbers, so:
a - b = ?
19 - 11 = 8

Hope this helps!


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3 years ago
Suppose a ball is dropped from a height of 6 ft. It bounces back up but each time it bounces, it reaches only 7/10 of its previo
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6
6 * 0.7 = 4.2
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Answer:

c and e ................

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