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Katen [24]
3 years ago
10

Determine whether the representation is proportional. y = -9x

Mathematics
1 answer:
34kurt3 years ago
6 0

Answer:

Yes, they are

Step-by-step explanation:

y = -9x

Here y∝ x

Where -9 is constant of proportionality

If "y" increases by factor of 2, then "x" will also increases by factor of 2. Hence, y and x are " directly proportional" to each other.

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Solve each of these equations. Explain or show your reasoning.
Svetlanka [38]

1.

2(x+5)=3x+1 \\2x+10=3x+1 \\-x=-9 \\x=9

2.

3y-4=6-2y \\5y=10 \\y=2

3.

3(n+2)=9(6-n) \\3n+6=54-9n \\12n=48 \\n=\frac{48}{12}=4

Hope this helps.

4 0
3 years ago
Rippy spends 3 hours, 35 minutes, and 4 seconds driving on a road trip. How many seconds did she spend driving?
noname [10]

Answer:

12,904 sec

Step-by-step explanation:

Each hour is 3600 seconds

each minute is 60 seconds

3600 * 3    +   35 *60   + 4 =

5 0
3 years ago
The sum of three numbers is 131. The second of three numbers is seven more than twice the first. The third number is 12 less tha
Norma-Jean [14]
First number is (x).
Second number is (2x+7).
Third number is (x-12).
Their sum is  (x+2x+7+x-12).
x+2x+7+x-12 =131

You can simplify this equation
4x-5=131,

4x=136
x=136/4=34 (first number), 
(2x+7)=34*2+7=75 (second number)
34-x=34-12 =22(third number)

Check: 34+75+22=131
6 0
3 years ago
Need help,please and thank you
muminat

If the two angles form a linear pair, the sum of the angles is 180 degrees.

If the small angle is one-third of the other, then the total is 1+1/3=4/3 of the larger angle.

By proportion,

L+L/3=4L/3=180

L=180*3/4=135 degrees

Smaller angle = L/3=45 degrees

Check: L+L/3=135+45=180 degrees, ok

3 0
3 years ago
Doubling the dimensions of a rectangle increases the area by a factor of 4.
aksik [14]

p → q  represents the original conditional statement and the contrapositive of the original conditional statement. Then the correct options are A and E.

The missing options are given below.

<h3>What is dilation?</h3>

Dilation is the process of increasing the size of an item without affecting its form. Depending on the scale factor, the object's size can be raised or lowered.

There is no effect of dilation on the angle.

Doubling the dimensions of a rectangle increases the area by a factor of 4.

If p represents doubling the dimensions of a rectangle and q represents the area increasing by a factor of 4.

Then the true statement will be

Then the correct options are A and E.

More about the dilation link is given below.

brainly.com/question/2856466

#SPJ1

8 0
2 years ago
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