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3 years ago

5

2/3 of ___=6 Can you help me?

2 answers:

zimovet [89]3 years ago

7 0

The answer is 9!!!!!

Artyom0805 [142]3 years ago

6 0

9 is the answer because 1/3 = 3

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Please do I'm to lazy to try and do it.

salantis [7]

-0.7
or
-0.66
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4 0

3 years ago

Read 2 more answers

Cindy wants to put new carpet in her entryway. The entryway is 15ft. long and 7ft. wide. She wants to buy 10% extra carpet in ca

igor_vitrenko [27]

Answer:

10.5

Step-by-step explanation:

quick math

4 0

2 years ago

Hey, I would appreciate it if you can help me with these problems, been stuck on it for a few days

Makovka662 [10]

Answer:

Explained below.

Step-by-step explanation:

The formula for average rate of change is:

$\frac{f(b) - f(a)}{b - a}$

1. $\frac{f(b) - f(a)}{b - a}$ = $\frac{f(2) - f(1)}{2 - 1}$ = $\frac{100 - 40}{2 - 1}$ = $\frac{70}{1}$ = 70

2. $\frac{f(b) - f(a)}{b - a}$ = $\frac{f(4) - f(2)}{4 - 2}$ = $\frac{180 -110}{4 - 2}$ = $\frac{70}{2}$ = 35

3. $\frac{f(b) - f(a)}{b - a}$ = $\frac{f(8) - f(6)}{8 - 6}$ = $\frac{350 -230}{8 - 6}$ = $\frac{120}{2}$ = 60

4. $\frac{f(b) - f(a)}{b - a}$ = $\frac{f(10) - f(8)}{10 - 8}$ = $\frac{390 -350}{10 - 8}$ = $\frac{40}{2}$ = 20

5. Their average speed was the greatest during the first to second hour.

6. Their average speed was the least during the eight to tenth hours.

7. $\frac{f(b) - f(a)}{b - a}$ = $\frac{f(10) - f(1)}{10 - 1}$ = $\frac{390 -40}{10 - 1}$ = $\frac{350}{9}$ = 38.89 or 38.9

Hope that helps!

6 0

3 years ago

Out of every 240 containers of juice brought in a grocery store, 116 are orange juice. what fraction purchased is orange juice

Rzqust [24]

116/240 which simplifies to 29/60 by dividing 116/240 by 4/4.

6 0

4 years ago

Read 2 more answers

7(x^2 y^2)dx 5xydyUse the method for solving homogeneous equations to solve the following differential equation.

aivan3 [116]

I'm guessing the equation should read something like

$7(x^2+y^2) \,dx + 5xy \, dy = 0$

or possibly with minus signs in place of +.

Multiply both sides by $\frac1{x^2}$ to get

$7\left(1 + \dfrac{y^2}{x^2}\right) \, dx + \dfrac{5y}x \, dy = 0$

Now substitute

$v = \dfrac yx \implies y = xv \implies dy = x\,dv + v\,dx$

to transform the equation to

$7(1+v^2) \, dx + 5v (x\,dv + v\,dx) = 0$

which simplifies to

$(7 + 12v^2) \, dx + 5xv\,dv = 0$

The ODE is now separable.

$\dfrac{5v}{7+12v^2} \, dv = -\dfrac{dx}x$

Integrate both sides. On the left, substitute

$w = 7+12v^2 \implies dw = 24v\, dv$

$\displaystyle \int \frac{5v}{7+12v^2} \, dv = -\int \frac{dx}x$

$\displaystyle \dfrac5{24} \int \frac{dw}w = -\int \frac{dx}x$

$\dfrac5{24} \ln|w| = -\ln|x| + C$

Solve for $w$ .

$\ln\left|w^{5/24}\right| = \ln\left|\dfrac1x\right| + C$

$\exp\left(\ln\left|w^{5/24}\right|\right) = \exp\left(\ln\left|\dfrac1x\right| + C\right)$

$w^{5/24} = \dfrac Cx$

Put this back in terms of $v$ .

$(7+12v^2)^{5/24} = \dfrac Cx$

Put this back in terms of $y$ .

$\left(7+12\dfrac{y^2}{x^2}\right)^{5/24} = \dfrac Cx$

Solve for $y$ .

$7+12\dfrac{y^2}{x^2} = \dfrac C{x^{24/5}}$

$\dfrac{y^2}{x^2} = \dfrac C{x^{24/5}} - \dfrac7{12}$

$y^2= \dfrac C{x^{14/5}} - \dfrac{7x^2}{12}$

$y = \pm \sqrt{\dfrac C{x^{14/5}} - \dfrac{7x^2}{12}}$

8 0

2 years ago