3 years ago

Multiplicitave inverse of 3/5

Mathematics

1 answer:

barxatty [35]3 years ago

8 0

Multiplicative inverse is a number with which if you multiply you get 1.

Hence 5/3 is the multiplicative inverse of 3/5

Since 3/5×5/3=1

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3 years ago

The points , (−15,1) and , (−7,r) lie on a line with slope 5/4. Find the missing coordinate r. Click image to enlarge

Nadya [2.5K]

The missing coordinate r is 11.

Solution:

Given points are (–15, 1) and (–7, r).

$x_{1}=-15, x_{2}=-7, y_{1}=1 \text { and } y_{2}=7$

Slope (m) = $\frac{5}{4}$

<u>To find the missing coordinate r:</u>

Slope formula:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Substitute the given values in the formula.

$$\frac{5}{4}=\frac{r-1}{-7-(-15)}$

$$\frac{5}{4}=\frac{r-1}{-7+15}$

$$\frac{5}{4}=\frac{r-1}{8}$

Do cross multiplication.

$8 \times 5=4(r-1)$

40 = 4r – 4

Add 4 on both side of the equation.

44 = 4r

Divide by 4 on both side of the equation.

11 = r

⇒ r = 11

Hence the missing coordinate r is 11.

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3 years ago

What is the fractional equivalent of 0.2323...? 23/99 23/999 2/9

lana [24]

It is equivalent to 23/99 but not for the rest.

As the denominator gets larger, the decimals gets smaller.
eg. 23/999 = 0.023232323...

As you can see , it is 0.02 now so it is not equivalent to 0.232323 as it is 0.2

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3 years ago

A rectangle has an area of 644 square miles and a height of 28 miles. What is the length of the base?

patriot [66]

The photo is blurry but the answer is 23

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3 years ago

Is 5x-3>5x-3 an identity or a contradiction

sesenic [268]

Answer:

contradiction

Step-by-step explanation:

they are both the same thing so how can they contradict? they can because the sign in the middle is greater than. if you put 1 in as x, you will get 2 is greater than 2 which does not make sense

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3 years ago

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