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Zolol [24]
3 years ago
5

Ax + c = R (solve for x)

Mathematics
2 answers:
notsponge [240]3 years ago
6 0

Answer:

x=\frac{R-c}{A}

Step-by-step explanation:

Given equation,

Ax + c = R---(1)

For getting the equation for x,

We need to isolate x in the left side,

Subtract c on both sides of equation (1),

Ax = R - c

Divide both sides by A,

x=\frac{R-c}{A}

Which is the required equation.

sp2606 [1]3 years ago
4 0
Ax + c = R     (subtract c from each side)

Ax + c - c = R - c

Ax = R - c     (divide A from each side)

Ax/A = (R-c)/A

x = \frac{R-c}{A}  <-answer

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Step-by-step explanation:

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3 years ago
Dla każdej z liczb 20, 60, 150, 300, znajdź liczbę : a) o 10% większa, b) o 20% mniejszą, c) o 50% mniejsza,
krek1111 [17]

Odpowiedź:

Prosimy sprawdzić wyjaśnienie

Wyjaśnienie krok po kroku:

Na numer: 20

a.) 10% więcej;

(1 + 10/100) * 20;

1,10 * 20 = 22

b.) 20% mniej

(1 - 20/100) * 20

0,8 * 20 = 16

c.) 50% mniej

(1 - 50/100) * 20

0,5 * 20 = 10

Dla numeru 60:

a.) 10% więcej;

(1 + 10/100) * 60;

1,10 * 60 = 66

b.) 20% mniej

(1 - 20/100) * 60

0,8 * 60 = 48

c.) 50% mniej

(1 - 50/100) * 60

0,5 * 60 = 30

Na numer 150;

a.) 10% więcej;

(1 + 10/100) * 150;

1,10 * 150 = 165

b.) 20% mniej

(1 - 20/100) * 150

0,8 * 150 = 120

c.) 50% mniej

(1 - 50/100) * 150

0,5 * 150 = 75

Dla numeru 300;

a.) 10% więcej;

(1 + 10/100) * 300;

1,10 * 300 = 33%

b.) 20% mniej

(1 - 20/100) * 300

0,8 * 300 = 240

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3 years ago
In ΔABC, a = 660 cm, b = 680 cm and c=100 cm. Find the measure of ∠B to the nearest degree.
scoundrel [369]

Answer:

m∠B = 97^{o}.

Step-by-step explanation:

Since the three sides of the triangle are given, then we apply cosine rule.

b^{2} = a^{2} + c^{2} - 2ac Cos B

But, a = 660 cm, b = 680 cm, and c = 100 cm.

So that;

680^{2} = 660^{2} + 100^{2} -2(660 x 100) Cos B

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462400 = 445600 - 132000 Cos B

132000 Cos B = 445600 - 462400

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Cos B = \frac{-16800}{132000}

         = -0.1273

B = Cos^{-1} -0.1273

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Thus, measure of ∠B is 97^{o}.

7 0
3 years ago
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