Answer:
1/2 tons of gravel per hour
Step-by-step explanation:
1/8=1/4
2/8=2/4
3/8=3/4
4/8 or 1/2 = 4/4 or 1
There is infinitely many ratios which are equivalent to 5:9. As we know always we can write divide as fraction, so

. We can multiply nominator and denominator by the any number (but the same) and get another numbers but ratio will be the same, so equivalent.
For example
10:18,
15:27
Assuming that the angles are congruent, then y = 29.
4y - 8 = 79 + y
4y = 87 + y Add 8 to both sides
3y = 87 Subtract y from both sides
y = 29
Shelby mistake is 11;4 is not the correct mixed number
The awnser would be 210 because 7 times 10 times 3 is 210