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Irina-Kira [14]
4 years ago
11

How do you know whether two quantities x and y are proportional?

Mathematics
1 answer:
Yuri [45]4 years ago
4 0

Answer: a. Every ratio yx for related pairs of x and y is equivalent.

Step-by-step explanation: The proportionality between two variables x and y is established using the proportionality relation.

x = ky where k is a constant and k = x / y. Hence every ratio of both numbers for a rated pair are equivalent once x and y ≠ 0

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1. Adjacent, complementary, vertical, or supplementary
Nat2105 [25]
1) ABF & EBD ARE SUPPLEMENTARY ANFLES (ABF + EBD =180)
2) FED=?. Note that FED=GEC=(16x-8).
Now in Triangle FED, the relation is (16x-8) + 35 + (2x+9) =180
hence x=8 & DEF=120


3 0
4 years ago
One positive number is 9 more than twice another. If their product is 95, find the numbers.
mafiozo [28]

Answer:

The numbers are 19 and 5

Step-by-step explanation:

Given

Let the numbers be x\ and\ y.

So:

x = 9 + 2y --- First statement

x*y = 95 --- second statement

Required

Find x and y

Substitute x = 9 + 2y in x*y = 95

(9 + 2y) * y = 95

9y + 2y^2 = 95

Rewrite as:

2y^2 + 9y - 95 = 0

Expand

2y^2 -10y +19y- 95 = 0

Factorize

2y(y -5) +19(y- 5) = 0

(2y  +19)(y- 5) = 0

Solve for y

2y + 19 =0 or y - 5 = 0

2y = -19 or y = 5

y = -\frac{19}{2} or y=5

Since the numbers are positive, we take only:

y=5

Substitute y=5 in x = 9 + 2y

x = 9 + 2 * 5

x = 9 + 10

x = 19

<em>The numbers are 19 and 5</em>

5 0
3 years ago
Find the value of h
slamgirl [31]

Answer:

h = 48

because 32 + 3h + 4 = 180

32 + 4 = 36

36 + 3h - 36 = 180 - 36

3h = 144

3h/3 = 144/3

h = 48

7 0
4 years ago
Answer this fo me gg kid
sineoko [7]

Answer:

264 cubic centimeters

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The moon has a shape of what geometric solid?
Alex777 [14]
<em>The moon is a sphere.</em><span><span><em> </em>
</span><span>
</span></span>
3 0
4 years ago
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