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dexar [7]
2 years ago
12

(_12)+7 what is solution ​

Mathematics
2 answers:
Mama L [17]2 years ago
6 0

Answer:

Step-by-step explanation:

-12 + 7= - 5

Gnoma [55]2 years ago
4 0

Answer: -5

Step-by-step explanation:

To solve a positive being added to a negative, just change it to the positive minus the negative. Instead of -12+7, do 7-12. So, your answer would be -5 since 12 less than 7 is negative 5.

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Which expression is equivalent to -0.55 – 0.47a + a?
Leto [7]

Answer:

-0.55 + 0.53a

Step-by-step explanation:

              -0.55 – 0.47a + a

 To find an expression equivalent to this, we must simplify the equation to a reasonable extent;

         -0.55 – 0.47a + a

      = -0.55 + 0.53a

      = 0.53a - 0.55

The expression equivalent to the given one is -0.55 + 0.53a  or 0.53a - 0.55

8 0
2 years ago
6x + 9 &lt; 63<br> what is x?
Natalija [7]
6x + 9 < 63

Subtract 9 from both sides.

6x < 54

Divide 6 by both sides.

x < 9
7 0
2 years ago
Read 2 more answers
Please help!
bulgar [2K]
Let us assume the total amount of meal charge paid by Michael without tax = x
Then
Amount paid to the waiter by Michael = 15x/100
Sales tax paid by Michael = 5x/100
Now we get the equation as
x + (5x/100) + (15x/100) = 18
(100x + 5x + 15x)/100 = 18
120x/100 = 18
120x = 1800
x = 1800/120
   = 180/12
   = 15 dollars
So the amount paid by Michael for the meal before tax and tip is $15. I hope the procedure is clear enough for you to understand.
6 0
3 years ago
Read 2 more answers
a fisherman travels 9mi downstream with the current in the same time he travels 3 mi upstream against the current. if the speed
netineya [11]

Answer:

10 mph

Step-by-step explanation:

speed of boat in still water = x

speed of current = 5

speed of boat with current (downstream) = x + 5

speed of boat against current (upstream) = x - 5

distance downstream = 9

distance upstream = 3

time = t

speed = distance/time

distance = speed × time

downstream:

9 = (x + 5)t

upstream:

3 = (x - 5)t

9 = xt + 5t

3 = xt - 5t

9 = xt + 5t

-3 = -xt + 5t

-----------------

6 = 10t

t = 0.6

9 = (x + 5)0.6

15 = x + 5

x = 10

5 0
1 year ago
Identify the values hat create ordered pairs that are solutions to the equation 3x-5y=20
djyliett [7]
X-intercept is 0
Y-intercept is —4
5 0
2 years ago
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