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Brut [27]
3 years ago
15

Solve: -3x + 12 = -18

Mathematics
2 answers:
creativ13 [48]3 years ago
7 0

Answer:

x=2

Step-by-step explanation:

-3x+12=-18

-3x=-18+12

-3x=-6

x=-6/-3

x=2

Ipatiy [6.2K]3 years ago
4 0

Answer:

x=10

Step-by-step explanation:

We are given the equation:

-3x+12= -18

and asked to solve for x. Therefore, we must isolate x on one side of the equation.

12 is being added to -3x. The inverse of addition is subtraction. Subtract 12 from both sides of the equation.

-3x+12-12= -18 -12

-3x= -18-12

-3x=-30

x is being multiplied by -3. The inverse of multiplication is division. Divide both sides of the equation by -3.

-3x/3=-30/-3

x= -30/-3

x=10

Let's check our solution. Plug 10 in for x and solve.

-3x+12=-18

-3(10)+12=-18

Multiply -3 and 10.

-30+12=-18

Add 12 to -30.

-18=-18

This checks out, so we know our solution is correct.

The solution -3x+12=-18 is x=10.

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A = {1, 2, 5, 7}<br> B = {3, 4, 6, 7}<br> C = {0, 5, 8, 9}<br> Find A U B U C.
castortr0y [4]

Answer:  In set theory, the union (denoted by ∪) of a collection of sets is the set of all elements in the collection. It is one of the fundamental operations through which sets can be combined and related to each other.

A U B U C = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }

Step-by-step explanation:

A = {1, 2, 5, 7}

B = {3, 4, 6, 7}

C = {0, 5, 8, 9}

A U B U C = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }

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3 years ago
In 1/8 days, a construction crew built 1/4 miles of a road. What is the unit rate in miles per day.
tigry1 [53]

The unit rate of road construction is 2 miles per day.

Step-by-step explanation:

Given,

In \frac{1}{8} days \frac{1}{4} miles road is constructed.

To find

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Method

We will apply unitary method to solve it.

Now,

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Hey there! I'm happy to help!

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We multiply the probabilities of these two events to find the probability of them both happening.

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The probability of picking two red cards in a row is 25/102 or around 24.5%.

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