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3 years ago

What is the answer x + 2x + 3(x + 4) = 5x - 6

Mathematics

1 answer:

dybincka [34]3 years ago

5 0

Answer:

x= -18

Step-by-step explanation:

x + 2x + 3(x + 4) = 5x-6

Distribute

x+2x+3x+12 = 5x-6

Combine like terms

6x +12 = 5x-6

Subtract 5x from each side

6x+12 -5x= 5x-6-5x

x+12 = -6

Subtract 12 from each side

x+12-12 = -6-12

x= -18

You might be interested in

if the sum of the interior angles of a regular polygon is 900 degrees, how many sides does the polygon have?

noname [10]

Sum of Interior Angles = (Number of Sides -2) • 180 degrees

Number of Sides = (Sum of Interior Angles / 180) +2

Number of Sides = (900 / 180) +2

Number of Sides = 7

It's a heptagon

7 0

3 years ago

What is the slope of the line that passes through 9,5 and 4,5

Vesnalui [34]

Answer:

Step-by-step explanation:

slope m = (y₂ - y₁) / (x₂ - x₁)

= (5 - 5) / (4 - 9)

= 0 / -5

= 0

6 0

3 years ago

Read 2 more answers

At the neighborhood grocery, 5 pounds of salmon cost $49. How much would it cost

cluponka [151]

Answer:

$46.06

Step-by-step explanation:

Divide $49 by 5

9.8

So it costs $9.80 for 1 pound of salmon

Multiply $9.80 by 4.7

$46.06

Hope this helped :)

7 0

3 years ago

Suppose a shipment of 120 electronic components contains 3 defective components. to determine whether the shipment should be ac

Likurg_2 [28]

For this problem, the most accurate is to use combinations

Because the order in which it was selected in the components does not matter to us, we use combinations

Then the combinations are $nC_r = \frac{ n! }{r! (n-r)!}$

n represents the amount of things you can choose and choose r from them

You need the probability that the 3 selected components at least one are defective.

That is the same as:

(1 - probability that no component of the selection is defective).

The probability that none of the 3 selected components are defective is:

$P = \frac{_{117}C_3}{_{120}C_3}$

Where $_{117}C_3$ is the number of ways to select 3 non-defective components from 117 non-defective components and $_{120}C_3$ is the number of ways to select 3 components from 120.