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sweet [91]
3 years ago
7

Balance the following : K + H20----------> KOH +H2please help fast I'm giving an exam​

Mathematics
1 answer:
Elza [17]3 years ago
7 0

Step-by-step explanation:

2K + 2H2O ➡ 2KOH + H2

Hope it helps :)

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Pls help I don't understand what is x→7 x+2-3x-7
valkas [14]

Answer:

??

Step-by-step explanation:

7x+2-3x-7 I believe this is impossible because ther will be no equal sign so please enter it again or?

5 0
2 years ago
Show me the work to this problem 4 1/8 + 2 3/5
Nonamiya [84]

Answer:

6 29/40

Step-by-step explanation:

1/8 times 5 equals 5/40 and 3/5 times 8 equals 24/40 you add them together to get 29/40 which can not be simplified then add 4 and 2 to get 6 so             <u>6 29/40  </u>is your answer.

3 0
3 years ago
Read 2 more answers
(Coordinate Plane) Point A coordinates are (1,3). If reflected across the x-axis, what is the new point's coordinates?
sp2606 [1]

Answer:

(1,-3)

Step-by-step explanation:

The reason why it would be (1,-3) is because (1,3) is in the first quadrant which is (+,+) and when it is reflected across the x axis, it is then placed into the fourth quadrant which is (+,-). So you need to make the 3 negative and then it will be reflecting across the x axis

3 0
3 years ago
Pls solve. Showing your work is suggested.
allsm [11]

Answer:

Part 3) Miguel scored 29 points and Alonzo scored 25 points

Part 4) Morgan's age is 14 1/2 years and Mr Santos' age is 29 1/2 years

Step-by-step explanation:

Part 3) Let

x ----> the number of points that Miguel scored

y ---> the number of points that Alonzo scored

we know that

x+y=54 ----> equation A

x=y+4 ----> equation B

substitute equation B in equation A and solve for y

(y+4)+y=54\\2y=54-4\\2y=50\\y=25

Find the value of x

x=25+4=29

the solution is the point (29,25)

That means ----> Miguel scored 29 points and Alonzo scored 25 points

Part 4) Let

x ----> Morgan's age

y ---> Mr Santos' age

we know that

x+y=44 -----> equation A

x=y-15 ----> equation B

substitute equation B in equation A and solve for y

(y-15)+y=44\\2y=44+15\\2y=59\\y=29.5

Find the value of x

x=29.5-15=14.5

the solution is the point (14.5,29.5)

That means ----> Morgan's age is 14 1/2 years and Mr Santos' age is 29 1/2 years

3 0
3 years ago
ET<br> 1<br> 1<br> 1<br> 2<br> 1<br> 4<br> 6(5 + 4) = 30 +
dimaraw [331]

Answer:

what is the et and 111214 for

Step-by-step explanation:

but 6(5 +4) = 30 + 15

the missing number is 15 though

5 0
3 years ago
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