3 years ago

The cost of flour varies directly with the mass. Robert bought 6.25 kg of flour for $18.50. What is the

Mathematics

1 answer:

kenny6666 [7]3 years ago

5 0

Answer:

your answer is B you multiple both numbers

You might be interested in

(x2 + 1) dy /dx + 3x(y − 1) = 0, y(0) = 3 how do i go about solving this mess

monitta

Consider, pls, this option.

7 0

3 years ago

<img src="https://tex.z-dn.net/?f=3%20%5Cfrac%7B3%7D%7B4%7D%20%20%5Ctimes%20%5Cfrac%7B2%7D%7B5%7D%20" id="TexFormula1" title="3

Gwar [14]

Answer:

1 1/2

Step-by-step explanation:

8 0

3 years ago

Any help with this greatly appreciated.

Anestetic [448]

Put the equation in standard linear form.

$x'(t) + \dfrac{x(t)}{t + 5} = 5e^{5t}$

Find the integrating factor.

$\mu = \exp\left(\displaystyle \int \frac{dt}{t+5}\right) = e^{\ln|t+5|} = t+5$

Multiply both sides by $\mu$ .

$(t+5) x'(t) + x(t) = 5(t+5)e^{5t}$

Now the left side the derivative of a product,

$\bigg((t+5) x(t)\bigg)' = 5(t+5)e^{5t}$

Integrate both sides.

$(t+5) x(t) = \displaystyle 5 \int (t+5) e^{5t} \, dt$

On the right side, integrate by parts.

$(t+5) x(t) = \dfrac15 (5t+24) e^{5t} + C$

Solve for $x(t)$ .

$\boxed{x(t) = \dfrac{5t+24}{5t+25} e^{5t} + \dfrac C{t+5}}$

3 0

2 years ago

X^2 + 2x + 5 find the zeros

Dvinal [7]

Answer:

Step-by-step explanation:

This is what I got

8 0

3 years ago

Find the partial derivatives of the function w=4r2+6s2+

lyudmila [28]

I'm taking the liberty of editing your function as follows: <span>w=4r^2+6s^2, where I use " ^ " to indicate exponentiation.

The partial of w with respect to r is 8r. That with respect to s is 12s.</span>

8 0

3 years ago