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2 years ago

Are the ratios 3:4 and 2:5 equivalent? yes or no

Mathematics

2 answers:

diamong [38]2 years ago

8 0

No you can’t multply anything by 3:4 to get 2:5 or u can’t do the same the other way

olya-2409 [2.1K]2 years ago

7 0

Answer:

Step-by-step explanation:

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Jerome tries to find the value of the expression 3 - 6 + 5 by first applying the commutative property.He rewrites the expression

Afina-wow [57]

By moving the signs he actually changed the number itself. He changed -6 from a negative to a positive and 5 from a positive to a negative. Both equations give different answers.

Hopefully this helps :)

8 0

3 years ago

Find two numbers whose difference is 12 and whose sum is 40

riadik2000 [5.3K]

Your answer is going to be 26 and 14, because 26+14=40, and 26-14=12.:)

5 0

3 years ago

21. Randy owns a computer store. In 1990, he sold 150 monitors. In 2000, he sold 900

lutik1710 [3]

Answer:

$y=75x+150$

Step-by-step explanation:

Let $y$ represent the number of monitors sold.

Given:

$x$ is the number of years since 1990.

So, for the year 1990, $x=0$ .

For the year 2000, 10 years passed. So, $x=10$ .

Now, monitors sold in 1990 are 150. So, at $x=0,y=150$

Monitors sold in 2000 are 900. So, at $x=10,y=900$

Thus, the two points are $(0,150)$ and $(10,900)$ .

The slope of a line with points $(x_{1},y_{1})$ and $(x_{2},y_{2})$ is given as:

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

For the points $(0,150)$ and $(10,900)$ , the slope is given as:

Slope, $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\ m=\frac{900-150}{10-0}\\ m=75$

Now, the y-intercept is the point where $x=0$ . So, the point $(0,150)$ has $x$ value as 0.

So, the y-intercept is 150.

Equation of a line in slope-intercept form is given as:

$y=mx+b$

Where, $m$ is the slope and $b$ is the y intercept.

Here, $m=75$ and $b=150$ .

Therefore, the equation that represents the above data is given as:

$y=75x+150$

7 0

3 years ago

For a fixed amount of gas at a constant temperature, the volume of the gas is inversely proportional to its pressure. The functi

malfutka [58]

The relation between pressure and volume is given as
v = 18000/p
where
v = volume, in³
p = pressure, lb/in²

When the pressure is p = 900 lb/in², then the volume is
v = 18000/900 = 20 in³

Answer: 20 in³

7 0

3 years ago

Read 2 more answers

For which value of x is the equation 2(1 + x) = x+3 true?<br> a.1<br> b.2 <br> c.3<br> d.4

dexar [7]

Answer:

a. 1

Step-by-step explanation:

Replace 1 with x

2 ( 1 + 1 ) = 1 + 3

2 ( 2 ) = 1 + 3

4 = 1 + 3

4 = 4

5 0

2 years ago

Read 2 more answers