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Brut [27]
4 years ago
15

Solve: -3x + 12 = -18

Mathematics
2 answers:
creativ13 [48]4 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]4 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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Of the 400 employees 5% of them are park managers. How many managers does the park employee?
aleksandr82 [10.1K]

Answer:

20 park managers

Step-by-step explanation:

We can multiply 5% by 400 to get the amount of park managers.

5%*400

I find converting percentages to fractions easier to solve.

1/20*400=20 park managers

8 0
3 years ago
When John mom went grocery shopping she bought 5 cans of corn for $1.00 each she bought 4 cases of water for $4.00 she also boug
algol [13]

Answer:

$1

Step-by-step explanation:

5 cans of corn  --  5 * $1 = $5

4 cases of water  --  4 * $4 = $16

4 pounds of meat  --  4 * $2 = $8

Paid with  --  $30

Change required  --  30 - 8 - 16 - 5 = $1

3 0
3 years ago
What does x equal? 5x = 2/7 ; x =
Pavlova-9 [17]

Answer:

it would be x=17 1/2

Step-by-step explanation:

i am going to go a little more into detail.

you would first have to divide each side to isolate the variable

x=5/2/7

simplifying steps:

you would have to change the 5 into 5/1

5/1÷2/7

now you have to keep the first number, change the sign, and then flip the last number, AKA KCF

5/1*7/2

35/2

and you can simplify this into a mixed number

17 1/2

hope this helps! have a nice day :)

8 0
3 years ago
HELP ME PLZZZ ITS DUE AT 11:59
kykrilka [37]

Step-by-step explanation:

9 ko

13x+6=9x-2 (co interior angle of parallrgram is equal)

13x-9x =-2-6

4x=-8

x =-8/4

x=-2

8 0
3 years ago
Thirty adults were asked which of the following conveniences they would find most difficult to do without: television, refrigera
Brut [27]

Answer:

(D) Pie chart

Step-by-step explanation:

The most appropriate method to represent the resulting data is the pie chart. This is because, in this sample, the variables are few and of nominal type.

Of the rest of the options, the only other that could be used is the histogram, since it can represent nominal variables with their corresponding frequency. The rest of the options have other uses not appropriate for this type of sample.

3 0
3 years ago
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