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antiseptic1488 [7]
3 years ago
9

Solve the equation x/4 - 5= -8 -27 -12 -7 12

Mathematics
2 answers:
MissTica3 years ago
6 0

Answer:

-12

Step-by-step explanation:

x/4 - 5= -8

Add 5 to each side

x/4 -5+5 = -8+5

x/4 = -3

Multiply each side by 4

x/4*4 = -3*4

x = -12

tamaranim1 [39]3 years ago
6 0

Hey there! :)

\frac{x}{4} - 5 = - 8

We're trying to get "x" onto its own side of the equal sign, so let's start out by adding 5 to both sides of the equal sign.

x/4 -5 + 5 = -8 + 5

Simplify.

x/4 = -3

Now, we need to get rid of "4" as the denominator (the bottom number in a fraction). So to do so, we must multiply both sides by 4.

x/4 · 4 = -3 · 4

Simplify.

x = -12

So, our answer is your second answer choice : -12

~hope I helped!~

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Together, this would be 3x-4.

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A taxi journey of 30km cost $3,600.At the same rate per kilometer .A what would be the cost of travelling 25k.B.How far could yo
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The cost of traveling 25km would be $3000.

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Step-by-step explanation:

Consider the provided information.

For 30km cost $3,600.

30 km = $3600

Divide both sides by 30.

\frac{30}{30}\text{ km}=\frac{3600}{30}

1 \text{ km} =120 ....(1)

The cost of 1 km is $120.

Part (A) what would be the cost of traveling 25km

Multiply both the sides of equation 1 by 25.

25 km = 3000

Hence, the cost of traveling 25km would be $3000.

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Divide 4200 by 120.

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Analyze the diagram below and answer the question that follows.
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Answer:

The right statement is sin(J) = cos(L) ⇒ answer D

Step-by-step explanation:

* Lets describe the figure

- LKJ is a right triangle, where K is a right angle

∵ m∠K = 90°

∵ LJ is opposite to angle K

∴ LJ is the hypotenuse

∵ LJ = 219

∵ KJ = 178

- By using Pythagoras Theorem

∵ (LJ)² = (LK)² + (KJ)²

∴ (219)² = (LK)² + (178)² ⇒ subtract (178)² from both sides

∴ (LK)² = (219)² - (178)²

∴ (LK)² = 16277

∴ LK = √16277 = 127.58

* Lets revise how to find the trigonometry function

# sin Ф = opposite/hypotenuse

# cos Ф = adjacent/hypotenuse

# tan Ф = opposite/adjacent

∵ LK is the opposite side to angle J

∵ LJ is the hypotenuse

∵ sin(J) = LK/LJ

∵ LK = 127.58 , LJ = 219

∴ sin(J) = 127.58/219 = 0.583

∵ LK is the adjacent side to angle L

∵ LJ is the hypotenuse

∵ cos(L) = LK/LJ

∵ LK = 127.58 , LJ = 219

∴ cos(L) = 127.58/219 = 0.583

∴ sin(J) = cos(L)

* The right statement is sin(J) = cos(L)

7 0
3 years ago
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