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Assoli18 [71]
3 years ago
10

Solve the proportion 9/2 = 27/2y

Mathematics
1 answer:
dalvyx [7]3 years ago
3 0

Answer:

y = 3

Step-by-step explanation:

We need to solve the below proportion in this problem,

\dfrac{9}{2}=\dfrac{27}{2y}

First of all, we cross multiply both sides such that,

9\times 2y=27\times 2\\\\18y=27\times 2

Dividing both sides by 18.

y=\dfrac{27\times 2}{18}\\\\y=3

For the above proportion, we find that the value of y is equal to 3.

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the cost of fencing a rectangular field at rupees 30 per metre is rupees 2400 if the length of the its field is 24m than its bre
prohojiy [21]

Answer:

breadth = 8, length = 32

Step-by-step explanation:

perimeter = 2 x (length x breadth)

                = 2 x ((24 + b) + b))

                = 2 x (24 + 2b)

                = 48 + 4 b

48 + 4b meters costs rupees 2400

each meter costs rupees 30

so,

30 x (48 + 4b) = 2400

1440 + 120b    = 2400

           120b    = 960

                 b    = 8

the breadth is 8m, the length is 8 + 24 = 32m

3 0
3 years ago
5x+2y=10 in function notation
Zanzabum
Normally it is x ininput and f(x)=y
solve for y and replace y with f(x)

minus 5x from both sides
2y=10-5x
divide both sides by 2
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f(x)=5-2.5x
4 0
4 years ago
Two consecutive integers are added. The square of their sum is 361. What are the integers?
artcher [175]
The integers are 9 and 10. 9 + 10 = 19. 19^2 = 361
8 0
3 years ago
Find the measure of ∠C to the nearest degree.
Alisiya [41]
Well, sine is \bf sin(\theta)=\cfrac{opposite}{hypotenuse},

but from the angle C, the opposite side, the one facing it off, is the side
AB, and we dunno what the side AB is

however, we know the hypotenuse is 8, and the adjacent side is 7,

and is right-triangle, thus, let us use the pythagorean theorem,

\bf c^2=a^2+b^2\implies \sqrt{c^2-a^2}=b\qquad 
\begin{cases}
c=hypotenuse\\
a=adjacent\\
b=opposite
\end{cases}
\\\\
thus
\\\\
\sqrt{8^2-7^2}=b=AB

now, that we know what the opposite side is, that is AB, then
we can find the sine of angle C \bf sin(\theta)=\cfrac{opposite}{hypotenuse}\implies sin(C)=\cfrac{\overline{AB}}{\overline{BC}}
3 0
4 years ago
Read 2 more answers
Gerry made a number line for a homework problem,
Flauer [41]

Answer:

The answer is point C

Step-by-step explanation:

Point C is the opposite of point P

5 0
3 years ago
Read 2 more answers
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