This are similar answers to your questions.
 
        
        
        
x= morning
y = afternoon
 x + y = 10
x=10-y
5x + 6y =57
5(10-y) +6y =57
50-5y +6y =57
y=7
x=10-7 =3
 check 3*5 = 15, 7*6 = 42, 42 + 15 = 57
3 morning practices
 
        
             
        
        
        
Absolute value is simply the non-negative version of the number regardless of its symbol
So for the absolute value of 20? the answer is just 20.
For reference, the absolute value of -20 is also just 20.
Hope the explanation helps :)
 
        
                    
             
        
        
        
Hi there!
From this problem we can pull out some key information and remove any excess.
- The trail is 1/4 of a mile long.
- Angelo rode around the trail 8 times.
- Angelo claims he rode 8/4 miles.
- Teresa claims he rode 2 miles.
From that we know that if Angelo rode around the trail 8 times and the trail is 1/4 a mile, he in total rode 8/4 of a mile.
However, Teresa claims he rode 2 miles!
And the answer is... they're both correct!
Angelo did indeed ride 8/4 miles however that is equivalent to 2 miles so they are both in the right.
        
             
        
        
        
Answer:
Step-by-step explanation:
4/3 = t/7
Multiply by 7 on both sides 
4/3 x 7 = t
28/3 = t