Answer:
Ok so first you would have to turn them into improper fractions which is
3 
= 
and 4 
= 
So now that you have made them both improper fractions you have to find common denominators.
To find common denominators you must multiply both the numerator and the denominator by the same thing. Since your oposing fraction has a denominator of 5 you can know that a even number wont go in an odd number so take and mutiply both numbers by 2 and get 
. Then mutiply both numbers in by 5 to get a common denominator.
=35 - 44 = -9 so your answer is 
Step-by-step explanation:
Answer:
according to long division, the decimal point would move 3 places to the right.
Step-by-step explanation:
729/101 = 7.21782178218
because 7 is over the 9, the decimal point is moving 3 points to the right.
Answer:
Total cooking time = 20t + 15
The expression 15t + 20 is wrong.
Step-by-step explanation:
weight of chicken = t lbs
cook time per lb = 20 minutes
This means that:
1 lb weight requires a cooking time of 20 minutes
1 lb = 20 minutes
∴ t lbs = 20 × t = 20t minutes.
We were also told that each chicken required an extra cooking time of 15 minutes, in addition to the total cooking time due to the weight. Therefore, the total cooking time is calculated thus:
Total cooking time = cooking time due to weight + 15 minutes
Total cooking time = 20t + 15
Hence the expression 15t + 20 is wrong, due to the explanation given above.
180 and 20 other words eeeee
For the first one it's 90.5, I know cause I just took the test and it's right. The second one I'm not sure..
