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3 years ago

2c – 4 = 3(4 – 2c) please find c

Mathematics

2 answers:

qaws [65]3 years ago

8 0

Answer:

c = 2

Step-by-step explanation:

First expand 3(4-2c):

3×4=12

3×-2c=-6c

Now our equation is :

2c-4 = 12-6c

Add 4 to both sides:

2c-4+4=12-6c+4

Simplify:

2c = -6c+16

Add 6c to both sides:

2c+6c = -6c+16+16

Simplify:

8c=16

Divide both sides by 8:

8c÷8 = 16÷8

c = 2

astraxan [27]3 years ago

6 0

Answer:

c = 2

Step-by-step explanation:

2c – 4 = 3(4 – 2c)

Expand brackets:

⇒ 2c – 4 = 12 - 6c

Add 6c to both sides:

⇒ 8c – 4 = 12

Add 4 to both sides:

⇒ 8c = 16

Divide both sides by 8:

⇒ c = 2

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P varies directly with T and p=10 when T=500. When T=509, find T

Zepler [3.9K]

Answer:

Let,

P= kT

P = 10, when T = 500

So, 10=k500

or, k=10/500

or, k=1/50

When T=509

P=kT

or, P=(1/50)×509

or, P=508/50

or, P = 10.18

And when P = 509 (since the question isn't clear)

509=(1/50)×T

or, T=509×50

or, T=25450

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4 years ago

Find the solution to this system. Is it (1,2)?

tester [92]

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3 years ago

Kite WXYZ is graphed on a coordinate plane. What is the approximate perimeter of the kite? Round to the nearest tenth. 10.6 unit

Archy [21]

Answer-

Perimeter of the kite is 16.2 units

Solution-

As WXYZ is a kite, so two disjoint pairs of consecutive sides are congruent, i.e WX=XY and WZ=ZY

So, perimeter of the kite WXYZ is,

$=2(\overline{WX}+\overline{WZ})$

And

$\overline{WX}=\sqrt{(1-3)^2+(1-4)^2}=\sqrt{(-2)^2+(-3)^2}=\sqrt{4+9}=\sqrt{13}$

$\overline{WZ}=\sqrt{(1-3)^2+(1+3)^2}=\sqrt{(-2)^2+(4)^2}=\sqrt{4+16}=\sqrt{20}$

So, perimeter will be,

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4 0

3 years ago

Read 2 more answers

Which function below has the largest slope?

vova2212 [387]

f(x) as a linear equation:

gradient = (12-4)/(4-2) = 4

y - 4 = 4(x - 2)

y = 4x - 4

Therefore f(x) = 4x - 4

g(x) = 10x - 4

Since it already started at 10 and it increases by one every level (x):

h(x) = x + 10

Therefore, since g(x) has the largest gradient (10x), it has the largest slope

3 0

3 years ago