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jeka94
3 years ago
12

Need help with this problem, please. The sum of three numbers is -3. The last number is three times the first. The last number i

s 11 smaller than the second number. What are the three numbers?

Mathematics
2 answers:
oee [108]3 years ago
4 0

Answer:

The three numbers are -1 6/7, -5 4/7, and 5 3/7

Step-by-step explanation:

The three numbers can be represented as...

x, 3x+11, and 3x

x+3x+3x+11=-2

7x+11=-2

7x=-13

x= - 1 6/7

3x= -5 4/7

3x+11= 5 3/7

babymother [125]3 years ago
3 0

Answer:

first number = -2

second number = 5

third number = -6

Step-by-step explanation:

Lets think first number is x , second number is y and third number is z.

You might be interested in
What value of X makes equation below true 2x + 9 = 4x - 1
ale4655 [162]

Answer:

5

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
On the right side, give a reason to justify each step made on the left
cestrela7 [59]

Given that: step 1

3x+12=8x-18

step 2: subtract 3x both side

\begin{gathered} 3x+12-3x=8x-3x-18 \\ 12=5x-18 \end{gathered}

Step 3: Add 18 both side:

\begin{gathered} 12+18=5x-18+18 \\ 30=5x \end{gathered}

Step 4: divide both side by 5

\begin{gathered} \frac{30}{5}=\frac{5x}{5} \\ 6=x \end{gathered}

Step:6 The value of x is:

x=6

8 0
1 year ago
(5j - 2q + 2/5) - (4 - 3j - 1/2q)
fenix001 [56]

Answer:

8j - \frac{3q}{2} - \frac{18}{5}

Step-by-step explanation:

hope this helps! :D

5 0
2 years ago
4a + c =17<br><br> A B C are consecutive numbers.
iris [78.8K]
A=3
B=4
C=5
Substitute 3 in for 'a' in the equation, and 5 in for 'c' in the equation to get 17.
6 0
3 years ago
(52) Pleaase check ym answer
Alinara [238K]
X = measure of each of the legs
"perimeter is 8 more than 2 times one of the legs" ---> P = 2x+8
P = 28 is the given perimeter

So,
P = 2x+8
28 = 2x+8
2x+8 = 28
2x = 20
x = 10

If x = 10, then the two legs add up to x+x = 10+10 = 20
Leaving P-20 = 28-20 = 8 inches left over for the base

You have the correct answer (choice D, 8 inches) though your steps are a bit confusing at some parts. Such as the part where you wrote 2x = 10 twice. I think I know what you were trying to say. 

4 0
3 years ago
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