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malfutka [58]
3 years ago
13

Solve the proportion 7/5=x/3

Mathematics
2 answers:
kumpel [21]3 years ago
6 0

Start with

\dfrac{7}{5}=\dfrac{x}{3}

Multiply both sides by 3:

\dfrac{21}{5}=x

Recall that 21/5=4.2 to claim the correct answer.

12345 [234]3 years ago
4 0

Answer:

The answer is 21/5 or 5/21.

Step-by-step explanation:

In order to remove the  3  by which the unknown  "x " is divided by, you must multiply by both sides of the equation by  3 , thus isolating  "x ":

Like this:

\frac{7}{5} x 3 = \frac{x}{3} x 3

If both sides of the equation were not multiplied by 3, we would not maintain equality across the equation, thus reaching an incorrect answer.

Therefore, simplifying the above you get:

x= \frac{5}{21}

<em>Hope This Helps!</em>

<em>Have an Amazing Day!! :)</em>

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jonny [76]

Answer:

The answer to your question is below

Step-by-step explanation:

Use trigonometric functions to find x

13.  cos 40 = 5/x

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15.- cos 65 = x/12

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      x = 20 / 1.42

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8 0
3 years ago
Write an equation of the line that passes through the points (2, -3) and is parallel to the x axis.
podryga [215]

Answer:

y=-3

Step-by-step explanation:

If the line is parallel to the x-axis then it is a horizontal line with slope 0. These lines have form y=b where b is the y-intercept or y value of all points. y=-3 is the line since (2,-3) is on the line.

4 0
3 years ago
Read 2 more answers
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Papessa [141]

Answer:

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Step-by-step explanation:

lets start with what we know.

the recipe calls for 2 \frac{1}{2} cups of yogurt. and Paolo doubles the recipe. so multiply the recipe for yogurt by 2

2 \frac{1}{2} * 2 = 5 cups of yogurt.

the total of yogurt and oats is 6\frac{1}{3} and we know how much yogurt we have so we subtract that from the total of both.

6\frac{1}{3} - 5 = 1\frac{1}{3}

the oats after doubling were 1\frac{1}{3} cups so u divide it by 2

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7 0
3 years ago
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Luden [163]

Answer: there is nothing shown below

Step-by-step explanation:

3 0
3 years ago
What is the answer to 8x^3+125 by factoring the perfect cube?
expeople1 [14]

Answer:

\large\boxed{8x^3+125=(2x+5)(4x^2-10x+25)}

Step-by-step explanation:

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3 0
3 years ago
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