4 years ago

If 3/7m= 7/3 n, then what is the value of m/n?

Mathematics

1 answer:

Veseljchak [2.6K]4 years ago

3 0

Your answer would be

m=49n/9

n=9m/49

That's what I got. Hope that helps!

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Use the distance formula to find the perimeter. Round to the nearest tenth.

Ierofanga [76]

Answer:

37.6 units

Step-by-step explanation:

Perimeter = sum of all sides of the triangle

To find the sum, find the distance between each points.

✔️Distance between points (-7, 6) and (5, -4):

$d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} =$

$= \sqrt{(5 - (-7))^2 + (-4 - 6)^2}$

$= \sqrt{(12)^2 + (-10)^2}$

$= \sqrt{144 + 100}$

$= \sqrt{244} = 15.6 units$ (nearest tenth)

✔️Distance between (-7, 6) and (-7, -4):

|6 -(-4)| = 10 units

✔️Distance between (-7, -4) and (5, -4)

|-7 - 5| = 12 units

✔️ Perimeter = 15.6 + 10 + 12 = 37.6 units

6 0

3 years ago

Combine the following fractions by addition or subtraction as directed.

Marina86 [1]

Answer: $\frac{6}{y^2-xy}-\frac{6}{x^2-xy}=\frac{6(x+y)}{xy(y-x)}$

Explanation:

Combining the fractions, we have:

$\begin{gathered} \frac{6(x^2-xy)-6(y^2-xy)}{(x^2-xy)(y^2-xy)} \\ \\ =\frac{6x^2-6xy-6y^2+6xy}{(x^2-xy)(y^2-xy)} \\ \\ =\frac{6x^2-6y^2}{x(x-y).y(y-x)} \\ \\ =\frac{6(x-y)(x+y)}{-xy(x-y)^2} \\ \\ =\frac{-6(x+y)}{xy(x-y)} \\ \\ =\frac{6(x+y)}{xy(y-x)} \end{gathered}$

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2 years ago

Emanuel was charged $32 for 14 2/9 km taxi ride. What was the cost per kilometer?

Anvisha [2.4K]

Answer:

$2.25

Step-by-step explanation:

32/(14 2/9) =

32/(128/9) =

2.25 =

$2.25 sollars/km

6 0

3 years ago

Solve for x and justify your answer

Alex17521 [72]

Do u mind zooming out?

5 0

3 years ago

Read 2 more answers

What is 30% of x is 60

Dima020 [189]

30% × = 60

30% = $\frac{30}{`00}$ = 0.3

0.3x = 60

Divide by 0.3 on either sides to isolate x

$\frac{0.3x}{0.3}$ = $\frac{60}{0.3}$
x = 200

30% of 200 is 60

8 0

4 years ago