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3 years ago

Solve this equation. Explain or show your WORK. 6(x - 7)= 2x + x + 9

Mathematics

1 answer:

lara [203]3 years ago

8 0

Answer:

x = 17

Step-by-step explanation:

6(x - 7)= 2x + x + 9
6x - 42 = 3x + 9
6x - 3x = 9 + 42
3x = 51
x = 51/3
x = 17

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Use ABC to find the value of cos a. 24/7 7/24 7/25 24/25

ExtremeBDS [4]

Answer:

$\frac{24}{25}$

Step-by-step explanation:

using the cosine ratio;

$\cos(\theta)= \frac{adjacent}{hypotenuse}$

From the question, the side of the right angle triangle that is adjacent to the measured <a,(i.e BAC) is AC=24 and the hypotenuse is AB=25

This implies that,

$cos(a)= \frac{24}{25}$

6 0

3 years ago

A furniture store is having a sale on sofas and you're going to buy one. The advertisers know that buyers get to the store and t

MrRissso [65]

Answer:

$290

Step-by-step explanation:

We are told that 1 out of 5 buyers change to a more expensive sofa than the one in the sale advertisement.

Now we are told that the advertised sofa is $250 and the more expensive sofa is $450.

Thus;

P(x) for expensive sofa = 1/5

P(x) for sofa in sale advertisement = 4/5

Thus, expected value is;

E(X) = (1/5)450 + (4/5)250

E(x) = 90 + 200

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6 0

3 years ago

Four numbers 1-6 you roll a six-sided die whose sides are numbered from 1 through 6. Find the probability of rolling the followi

mel-nik [20]

Answer:

Since half of the numbers are even, 2, 4, 6

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P(multiple of 3) = 2/6 = 1/3

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P(≤4) = 4/6 = 2/3

Prime numbers are 2, 3, 5

P(prime) = 3/6 = 1/2

Numbers > 1 are 2, 3, 4, 5, 6

P(>1) = 5/6

A four, there is one option

P(4) = 1/6

5 0

3 years ago

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Pachacha [2.7K]

9.
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3 years ago

At a restaurant, 8 plates are accidently

inessss [21]

Y=-8x+7
explanation-
-8 is the growth rate and 7 is the amount of days the -8 is happening.
Hope this helps!

6 0

3 years ago