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3 years ago

Two quantities, x and y, are directly proportional. if x is halved what happens to y

Mathematics

1 answer:

NISA [10]3 years ago

4 0

Answer:the same happens with the y too then y is also halved

Step-by-step explanation:

x1=x

y1=y

x2=x/2

y2=?

x1/y1=y2/x2

x/y=y2/x/2

y2=y/2

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What is the volume of the square pyramid? Round to the nearest tenth.

goldfiish [28.3K]

Answer:

$V=718.7\ cm^{3}$

Step-by-step explanation:

we know that

The volume of the square pyramid is equal to

$V=\frac{1}{3}b^{2}h$

we have

$b=14\ cm$ ----> the length of the base of the square pyramid

$h=11\ cm$ ---> the height of the pyramid

substitute the values in the formula

$V=\frac{1}{3}(14)^{2}(11)$

$V=718.7\ cm^{3}$

4 0

3 years ago

If y=3x and 2x−4y=3 , then x=

tatiyna

Answer:

x = -3/10

Step-by-step explanation:

Solve for x by substituting y = 3x into the other equation:

2x - 4y = 3

2x - 4(3x) = 3

Simplify and solve for x:

2x - 12x = 3

-10x = 3

x = -3/10

So, x = -3/10

3 0

2 years ago

Read 2 more answers

15PTS!!!! HELPPPP!!! Determine the length of fencing around an 80 m by 170 m rectangular playing field if fence is to be 25 m ou

marshall27 [118]

Perimeter=2L+2W, in this case L=80+2(25) and W=170+2(25) so

P=2(L+W)=2(80+50+170+50)

P=2(350)=700m

5 0

3 years ago

Solve the proportional equation below:<br> 3/m=6/7

labwork [276]

Answer:

m = $\frac{7}{2}$

Step-by-step explanation:

Given

$\frac{3}{m}$ = $\frac{6}{7}$ ( cross- multiply )

6m = 21 ( divide both sides by 6 )

m = $\frac{21}{6}$ = $\frac{7}{2}$ ( = 3.5 in decimal form )

3 0

3 years ago

Solve for x: 8x-5= 6x + 1

Romashka-Z-Leto [24]

Step-by-step explanation:

8x-5= 6x + 1

8x - 6x = 1+5

2x = 6

x= 2/6 = 1/3

x= 0.333

6 0

3 years ago