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3 years ago

(6 2/5 + 1 4/5) + 3 1/5

Mathematics

2 answers:

Pie3 years ago

6 0

The answer (im pretty sure) is: 10 2/5

natali 33 [55]3 years ago

6 0

I believe the answer would be 11 2/5 or 11.4

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Factor completely 10x^5+4x^4+8x^3

Alex_Xolod [135]

C.

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6 0

3 years ago

What percentage of the mile times range from 7.25 to 9.375?

Step2247 [10]

1. We assume, that the number 9.375 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 9.375 is 100%, so we can write it down as 9.375=100%.

4. We know, that x is 7.25% of the output value, so we can write it down as x=7.25%.

5. Now we have two simple equations:

1) 9.375=100%

2) x=7.25%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

9.375/x=100%/7.25%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 7.25% of 9.375

9.375/x=100/7.25

(9.375/x)*x=(100/7.25)*x - we multiply both sides of the equation by x

9.375=13.793103448276*x - we divide both sides of the equation by (13.793103448276) to get x

9.375/13.793103448276=x

0.6796875=x

x=0.6796875

now we have:

7.25% of 9.375=0.6796875

8 0

3 years ago

A square is drawn on the coordinate plane. The endpoints of one of it's sides are located at (-2, 4) and (-2, -11). What is it's

Vedmedyk [2.9K]

I think it is B
Sorry if i’m wrong

5 0

3 years ago

Read 2 more answers

If Tanisha has $1000 to invest at 7% per annum compounded semiannually, how long will it be before she has $1600? If the co

Sphinxa [80]

Answer:

Using continuous interest 6.83 years before she has $1600.

Using continuous compounding, 6.71 years.

Step-by-step explanation:

Compound interest:

The compound interest formula is given by:

$A(t) = P(1 + \frac{r}{n})^{nt}$

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per unit year and t is the time in years for which the money is invested or borrowed.

Continuous compounding:

The amount of money earned after t years in continuous interest is given by:

$P(t) = P(0)e^{rt}$