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likoan [24]
3 years ago
10

Find y when x = 15 if y = 6 when x = 30

Mathematics
1 answer:
Ivahew [28]3 years ago
6 0
Y is 12 you just multiply by 2 since 15 was multiplied by 2 as well
You might be interested in
One number is 9 more than twice another. If their difference is 22, what is the larger number?
mafiozo [28]
Let, the numbers are: x, y
So, Equations will be: x - y = 22
x = 2y + 9

Substitute the value of x in first equation, 
2y + 9 - y = 22
y = 22 - 9
y = 13

x - 13 = 22
x = 22 + 13 = 35

In short, Larger number would be 35

Hope this helps!
4 0
3 years ago
Please I need help! I will mark you as brainliest!
Nadusha1986 [10]

Answer:

Step-by-step explanation:

SIDE OF THE SQUARE = 6 cm = DIAMETER OF THE CIRCLE.

AREA OF THE CIRCLE = (Pi/4)*6^2 = [(22/7)/4]*36 = 22*9/7 = 28.2857 sqcm

or

First, find the side length of the square. (Find the square root of 36 cm^2, to get 6 cm as the side length of the square).

Second, find the radius of the circle inside the square. The side length of the square is the diameter of the circle. Radius is half of the diameter. So, half of 6 cm is 3 cm; this is the radius of the circle.

Third, find the area of the circle by using the formula, A = pi x radius x radius

so, Area = 3.14 x 3 cm x 3 cm

by calculation we get the area of the circle is 28.26 cm^2

Where pi is a constant of 22/7 or 3.14

3 0
4 years ago
Read 2 more answers
The sum of a number y and 9 is greater than 10​
astra-53 [7]

Answer:

y</= 2

Step-by-step explanation:

9 + 1 = 10

9 + 2 < 10

y = anything < 2

4 0
4 years ago
Pls help me, its not hard
natulia [17]

Answer:

1. y = -x + 3

2. y = x - 3

3. y = 3x + 1

4. y = -3x - 3

Step-by-step explanation:

Hello! sorry, I just saw your message on the question I answered before asking for help so here you go, these are the answers, hope this helps.

Pls mark me brainliest if you can:)

3 0
3 years ago
Full explanation please<br> will mark brainlist
just olya [345]

Answer:

Hope the picture will help you.....

8 0
2 years ago
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