Answer:
x=-9
Step-by-step explanation:
B is unnecessary here, so we can ignore it. The first thing we do in this equation is simplify by adding like terms. 5a-10a=-5a. So, the equation is now -5a=45. To solve a, we need it by itself. To do that, we undo the multiplication by diving both sides of the equation by -5. 45 divided by -5 is -9, and then we have x=-9.
Answer:
The answer to this problem is B, C, and E.
Step-by-step explanation:
6:45AM
7:45 minus 15 is 7:30
7:30 minus 46 mins is 6:45
So, therefore 6:45AM :)
Each horse and person has 1 head
we know that people+horses=74
p+h=74
1 person has 2 legs
1 house has 4 legs
p=number of people
h=number of hourses
number of legs=196
4 times h=number of legs if h hourses
2p=number of legs if p people so
196=2p+4h
divide by 2
98=p+2h
multiply first equation by -1
-p-h=-74
add to current equation
p-p+2h-h=98-74
0p+h=24
there were 24 hourses
subsitute
24+p=74
ssubtract 24
50=p
there were 524 horses and 50 people
the answer is B