He will need to run for 30 minutes to burn about 390 calories
Answer:
53
Step-by-step explanation:
when c=6 and d=5 we want to substitute the variables with the numbers in the equation so we'll have
(5) + 8(6)
after evaluating we come up with the answer 53
Answer:
x = 8, y = 4
Step-by-step explanation:
x = 3y-4
2x - 8 = 2y
x - 4 = y
x = y + 4
substitute top equation to this equation
3y-4 = y+4
2y = 8
y = 4
now substitute this into second equation
x = y + 4
x = 8
check answer with first equation
x = 3y-4
8 = 3(4) - 4
8 = 8; correct
Answer:
1.33333333333
, simplified to 1.3
Step-by-step explanation:
Our equation is 2 multiplied by 2 over 3.
Fractions mean division.
So, let's multiply 2 by 2/3.
We get 1.33333333333
That's too long! What can we simplify it to?
1.3
Hope this helped!
- Melanie
