All categories

4 years ago

Which of the following is not a proportion?

Mathematics

2 answers:

Alina [70]4 years ago

5 0

4/10 = 12/20 since 4/10 = 10/20

Ivahew [28]4 years ago

4 0

Hiya there! :D The answer to your question is 4/10= 12/20. That is NOT A PROPORTION. Anyways I just did for the first one 1*3=3 and 4*3= 12 which is 3/12. Next 4/10= 12/20. Nope you can't do that. 4/10= 0.40 and 12/20= 0.60 those are not the same.2/4= 3/6 those both equal 1/2. You can simplify them and make them 1/2 and they are the same! They both equal to 1/2 and 0.50. Last but not least 8/6= 20/15. 8/6= 1.333333 and 20/15= 1.3333333. So yeah that's how I got my answers! ;D

Hope I helped! Have a nice day! ;) :D :)

You might be interested in

Two angles are complementary. One angle is ten less than four times the other angle. Find the measure of the larger angle

Nimfa-mama [501]

Answer:

B.70

Step-by-step explanation:

For one or two angles are complementary angle(s), they have to equal 90°.

So, we need to find the larger angle, but what about the other?

Let x be the other angle and y be the angle we are looking for

x + y = 90

Lets look for x first, since one angle is ten less than four times the angle we are looking for or visa versa, we must:

y = 4x - 10

For an exchange, lets take out the y variable for another x variable:

So now we should have x + 4x - 10 = 90

Combine like terms and do cross equation :

x + 4x -10 = 90

5x - 10 = 90

Add 10 to both sides:

5x = 100

100/5 = 20

So x=20

Now for y which is what we are looking for,

y = 4x - 10

Since x is 20, plug it in

y = 80 - 10

y=70 is our larger angle

5 0

3 years ago

PRECALCULUS HONORS HELP ME PLZ AND THANKS

Natalka [10]

Inequalities are used to show the relationship between unequal expressions

The set notation of (5) and (6) are: $\{x : -6 > x \ge -2\}$ and $\{x:-4 < x \ge 6\}$ .
See attachment for the graphs

The following should be notated when plotting the graph of an inequality

< and > are represented with open circles, while $\leq$ and $\geq$ are represented with closed circles
The arrows of and $\le$ point to the left, while the arrows of $>$ and $\geq$ point to the right.

So, we have:

$(a)\ -8 < x$

Rewrite as:

$x > -8$

The graph of $x > -8$ will point to the right, and it will use an open circle

$(b)\ -6 > x \ge -2$

Split the inequality:

$-6 > x$ and $x \ge -2$

It is not possible for -6 to be less than x and at the same time, x is greater than or equal to -2.

Hence. $-6 > x \ge -2$ cannot be represented on a graph

$(c)\ -4$

Split the inequality:

$-4 < x$ and $x \ge 6$

$-4 < x$ means that -4 is less than x or x is greater than -4.

So, we have:

$x > -4$ and $x \ge 6$

If $x > -4$ and $x \ge 6$ , then we make use of $x > -4$ because it contains more values of x.

The graph of $x > -4$ will point to the right, and it will use an open circle

Read more about inequalities at:

brainly.com/question/11612965

6 0

3 years ago

NEED HELP please and thank you hehe

Lesechka [4]

Answer:

113

Step-by-step explanation:

it's the x outside right?

7 0

3 years ago

14. A sphere is inscribed in a cube with an edge of 10. What is the shortest possible distance from one of the vertices of the c

DedPeter [7]

Answer:

5(√3 - 1)

Step-by-step explanation:

Edge of cube = 10

If the sphere is inscribed in a cube, the edges of the cube is equal to the diameter of the sphere.

Diameter = 10

We will then find the diagonal of the cube.

Diagonal = √10^2 + 10^2 + 10^2

= √300

= 10√3

Let X be the distance between the vertex of the cube and the surface of the sphere

X = (diagonal - diameter) /2

X = (10√3 - 10)/2

X = (10(√3 - 1))/2

X = 5(√3 - 1)

8 0

3 years ago

Solve the equation 2p/3-12=-2

-BARSIC- [3]

Hey there!

$\frac{2p}{3} - 12 = -2$

Firstly, we are going add $12$ on each of the sides that we're working with. like ↓

$p - 12 + 12 \\ \\ = -2 + 12$

This gives us $\frac{2}{3}p = 10$ (if you are wondering how we got the out come of $10$ it is because I added $-2 + 12 = 10$

Now multiply $\frac{3}{2}$ on each of your sides

$\frac{3}{2} ( \frac{2}{3}p) \\ \\ = \frac{3}{2} (10)$

Cancel the first set and you will find the value of $p$

$p = 15$

Good luck on your assignment and enjoy your day

~ $LoveYourselfFirst:)$

5 0

3 years ago