Answer:
x = 14/3
y = 16.3333333333
Step-by-step explanation:
Step 1. equal them to each other and solve for x
2x + 7 = 5x - 7
5x - 2x = -14
3x = 14
x = 14/3
Step 2. Plug in the value of x and solve for y
y = 5x - 7
y = 16.3333333333
tadah!
15,518, because it is over 15,500 and below 16,499.999999...
Speed=distance traveled/time of the travel=78/2=39 mph
Answer:
The answers are
and
.
Step-by-step explanation:
Proportions are fractions that can be made by using the given numbers, which in this case are 2, 5, 8, and 20. Let's pair each one with the other three and then simplify if possible.
First, let's begin with 2:



Then, let's do 5:



Note that we already have
, so we do not need to include an additional one.
Now, let us do 8:



See how we already have
, so we won't have to include that as well.
Finally, let's do 20:



Now see that we already have both
and
, so we won't have to include both of them, as they are both extras.
Hence, the answers are
and
.
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Answer:
x=-20
Step-by-step explanation:
x+9=-11
Subtract 9 from both sides. (-11-9=-20)
x=-20