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2 years ago

3 is what percentage of 5

Mathematics

2 answers:

Feliz [49]2 years ago

8 0

Answer: 60%

Step-by-step explanation:

3/5 * 100

3 * 20

cupoosta [38]2 years ago

6 0

Answer:

60%

Step-by-step explanation:

is means equals and of means multiply

3 = P * 5

divide each side by

3/5 = P

.6 = P

Change to a percentage by multiplying by 100

60%

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Write 21/23 as a decimal rounded to the nearest tenth.

n200080 [17]

Answer:

0.9

Step-by-step explanation:

21 ÷ 23 = 0.913

Round to the nearest tenth = 0.9

Hope this helps!

6 0

2 years ago

2x-3/x devided by 7/x^2

Sergio039 [100]

Answer:

$\frac{2x^2-3x}{7}$

Step-by-step explanation:

$\frac{2x-3}{x}$ ÷ $\frac{7}{x^2}$

=> $\frac{2x-3}{x}$ × $\frac{x^2}{7}$

=> $\frac{2x-3}{7}$ × $\frac{x^2}{x}$

=> $\frac{x(2x-3)}{7}$

=> $\frac{2x^2-3x}{7}$

4 0

2 years ago

Write three measurments using grams and three measurements using milligrams total 15.4 grams

luda_lava [24]

2+3+10 g +1+1+2mg =15.4 grams

5 0

2 years ago

Use the given transformation x=4u, y=3v to evaluate the integral. ∬r4x2 da, where r is the region bounded by the ellipse x216 y2

exis [7]

The Jacobian for this transformation is

$J = \begin{bmatrix} x_u & x_v \\ y_u & y_v \end{bmatrix} = \begin{bmatrix} 4 & 0 \\ 0 & 3 \end{bmatrix}$

with determinant $|J| = 12$ , hence the area element becomes

$dA = dx\,dy = 12 \, du\,dv$

Then the integral becomes

$\displaystyle \iint_{R'} 4x^2 \, dA = 768 \iint_R u^2 \, du \, dv$

where $R'$ is the unit circle,

$\dfrac{x^2}{16} + \dfrac{y^2}9 = \dfrac{(4u^2)}{16} + \dfrac{(3v)^2}9 = u^2 + v^2 = 1$

so that

$\displaystyle 768 \iint_R u^2 \, du \, dv = 768 \int_{-1}^1 \int_{-\sqrt{1-v^2}}^{\sqrt{1-v^2}} u^2 \, du \, dv$

Now you could evaluate the integral as-is, but it's really much easier to do if we convert to polar coordinates.

$\begin{cases} u = r\cos(\theta) \\ v = r\sin(\theta) \\ u^2+v^2 = r^2\\ du\,dv = r\,dr\,d\theta\end{cases}$

Then

$\displaystyle 768 \int_{-1}^1 \int_{-\sqrt{1-v^2}}^{\sqrt{1-v^2}} u^2\,du\,dv = 768 \int_0^{2\pi} \int_0^1 (r\cos(\theta))^2 r\,dr\,d\theta \\\\ ~~~~~~~~~~~~ = 768 \left(\int_0^{2\pi} \cos^2(\theta)\,d\theta\right) \left(\int_0^1 r^3\,dr\right) = \boxed{192\pi}$

3 0

1 year ago

Determine the correct equation for the following verbal sentence: The total distance traveled, d, at a constant speed of 45 mile

lidiya [134]

D=45h
It looks like that is option B

6 0

2 years ago

Read 2 more answers