Answer:
Step-by-step explanation:
I think it is C
Answer:
50 mph
Step-by-step explanation:
500/10= 50 miles per hour
The answer is <span>b.3x + 15 = 55 - x
</span>
x - Jill's present age
y - dad's present age
<span>In 5 years, Dad will be three times as old as his daughter Jill will be then:
y + 5 = 3(x + 5)
</span><span>The sum of their present ages is 50:
x + y = 50
We have the system of two equations now:
</span>y + 5 = 3(x + 5)
x + y = 50
Let's rearrange the second equation:
If: x + y = 50
Then: y = 50 - x
Now, substitute y from the second equation (y = 50 - x) into the first one:
y + 5 = 3(x + 5)
50 - x + 5 = 3(x + 5)
50 + 5 - x = 3*x + 3*5
55 - x = 3x + 15
Rearrange it a bit:
3x + 15 = 55 - x
Therefore, the correct choice is b.
Answer:
1. -1.14285714286
2. 0.16666666666
3. 6.8
4. -1.7
5. 1 Answer. The answer is 4.5 hours (or 4 hours and 30 minutes).
Step-by-step explanation:
5 explanation. Rolf spent 15 hours last week practicing his saxophone if 3/10 of the time was spent practicing warm up routines How much time did he spend practicing warm up routines.
6. i didn't do any work
but i hope this is good for ya
Answer:
ab=48
Step-by-step explanation:
96/2=48
