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3 years ago

The simple interest formula is I=Prt. If the principal is $250 and the interest

Mathematics

1 answer:

Usimov [2.4K]3 years ago

3 0

Answer:

$275

Step-by-step explanation:

Add 250+25 which equals 275

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Blue marlin can swim at speeds of about 50 miles per hour.What is that speed and feet per second to the nearest whole number

pentagon [3]

264000, 5280 feet in a mile, multiply by 50

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4 years ago

20 points!~ And thanks if you help me.

Oduvanchick [21]

Answer:

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3 years ago

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Nancy borrowed $24000 from the State Bank to buy a scooter. If the rate of interest be 12% per annum, what payment will she have

aivan3 [116]

Answer:

the future value is $47,371.74

Step-by-step explanation:

Given that

The borrowed amount is $24,000

The rate of interest is 12% per annum

The time period is of 6 years

We need to find out the payment made i.e. future value

So as we know that

Future value = Present value × (1 + rate of interest)^no of years

= $24,000 × (1 + 0.12)^6

= $24,000 × 1.12^6

= $47,371.74

Hence, the future value is $47,371.74

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3 years ago

What is a percent? Doesn't it mean a fraction out of 100?

PIT_PIT [208]

We use the symbol % for "percent."

The word "percent" really just means "per hundred.

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4 years ago

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Solve the given differential equation by using an appropriate substitution. The DE is a Bernoulli equation.

Mama L [17]

Multiplying both sides by $y^2$ gives

$xy^2\dfrac{\mathrm dy}{\mathrm dx}+y^3=1$

so that substituting $v=y^3$ and hence $\frac{\mathrm dv}{\mathrm dv}=3y^2\frac{\mathrm dy}{\mathrm dx}$ gives the linear ODE,

$\dfrac x3\dfrac{\mathrm dv}{\mathrm dx}+v=1$

Now multiply both sides by $3x^2$ to get

$x^3\dfrac{\mathrm dv}{\mathrm dx}+3x^2v=3x^2$

so that the left side condenses into the derivative of a product.

$\dfrac{\mathrm d}{\mathrm dx}[x^3v]=3x^2$

Integrate both sides, then solve for $v$ , then for $y$ :

$x^3v=\displaystyle\int3x^2\,\mathrm dx$

$x^3v=x^3+C$

$v=1+\dfrac C{x^3}$

$y^3=1+\dfrac C{x^3}$

$\boxed{y=\sqrt[3]{1+\dfrac C{x^3}}}$

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3 years ago