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sashaice [31]
3 years ago
10

Three times a number plus 12 minus 5 times the same number is 22

Mathematics
2 answers:
Dimas [21]3 years ago
5 0
Three times (3 ·) a number (x) plus (+) 12 minus (-) 5 times (·) the same number (x) is (=) 22

3x + 12 - 5x = 22   Combine like terms (3x and -5x)
      -2x + 12 = 22   Subtract 12 from both sides
              -2x = 10   Divide both sides by -2
                 x = -5
Luba_88 [7]3 years ago
4 0
1. a number is represented by "x" 

<span>3x + 12 - 5x = 22 </span>
<span>12 - 2x = 22 </span>
<span>-2x = 10 </span>
<span>x = -5 </span>


<span>2. (45) + (45) + (45 + 6x) = 303 </span>
<span>job 1, 2, 3 equals total for the day </span>

<span>135 + 6x = 303 </span>
<span>6x = 168 </span>
<span>x = 28 
</span>
<span>the plumbers hourly rate is $28/hr</span>
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TiliK225 [7]

Answer:

22 meters

Step-by-step explanation:

Area of yellow rectangle: 6x4=24

Area of gray rectangle: 8x=24

x=3

Thus, the perimeter is 3+3+8+8, which is 22.

5 0
3 years ago
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aleksandrvk [35]
This your answer hope i helped. :)

<span> The point lies one unit above the regression line. </span>
4 0
3 years ago
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Help I need the answers
jolli1 [7]
240
/ \
5 48
/ \
6 8
/ \ / \
3 2 4 2
7 0
3 years ago
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Sarah took the advertising deparſment from her company on a round trip to meet with a potential client. Including Sarah a total
wlad13 [49]

Answer:

Sarah bought 7 coach tickets and 4 first class tickets.

Step-by-step explanation:

From the information provided, you can write the following equations:

x+y=11 (1)

240x+1100y=6080 (2), where:

x is the number of coach tickets

y is the number of first class tickets

In order to find the value of x and y, first you have to solve for x in (1):

x=11-y (3)

Now, you have to replace (3) in (2) and solve for y:

240(11-y)+1100y=6080

2640-240y+1100y=6080

860y=6080-2640

860y=3440

y=3440/860

y=4

Finally, you can replace the value of y in (3) to find the value of x:

x=11-y

x=11-4

x=7

According to this, the answer is that Sarah bought 7 coach tickets and 4 first class tickets.

7 0
3 years ago
I need help for both of these !
VLD [36.1K]
4. \frac{w+3}{2}<-8
First, you can multiply both sides of the inequality by 2 to cancel out the fraction to get:
w+3<-16
Then subtract 3 from both sides to get:
w<-19 
Above is your answer

5. h≤\frac{6h+3}{5} 
Like we did in the first one, multiply by 5 on both sides to get: 
5h≤6h+3
Then subtract 6h from both sides to get
-1h≤3
Divide by -1 into both sides, and when you divide or multiply an inequality by a negative number, you flip the sign, so you would get
h≥-3
Above is your final answer

Hope this helped!
6 0
3 years ago
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