Answer:
Correct answer: pt = 7,000 minutes
Step-by-step explanation:
This is arithmetic series:
p₁ = 40 min
p₂ = p₁ + 20
p₃ = p₂ + 20 = p₁ + 2 · 20
p₄ = p₃ + 20 = p₁ + 3 · 20
...........................................
pₙ = p₁ + (n - 1) · 20
25 - th day will be practicing:
p₂₅ = 40 + 24 · 20 = 520 minutes
The total sum of the arithmetic series is calculated according to the following formula:
Sₙ = (n/2) (p₁ + pₙ)
In 25 days he will have practiced total minutes
pt = (25/2) · ( 40 + 520) = (25/2) · 560 = 7,000 minutes
pt = 7,000 minutes
God is with you!!!
Answer: 
Step-by-step explanation: Given expression 
.
The first factor 
has a degree of : 2 because power of a is 2.
The second factor 
has a degree of : 3 because power of a is 3.
The third factor 
has a degree of : 2 because highest power of a is 2.
Let us multiply them now:
First we would multiply 
.
According to product rule of exponents, we would add the powers of a.
Therefore,
Now, we need to distribute 
over
Therefore,
=
Highest power of resulting polynomial is 7.
Therefore, The product has a degree of 7.
7 hrs 12 minutes
6 hrs 46 minutes
6 hrs 53 minutes
--------------------------add
19 hrs 111 minutes ......... = (19 * 60) + 111 = 1140 + 111 = 1251 minutes
1251 / 3 = 417 minutes <== her average delivery....or 6 hrs 57 minutes
Answer:
Step-by-step explanation:
http://www.ametys.ma/sites/default/files/webform/03_0.html
http://www.ametys.ma/sites/default/files/webform/04_0.html
http://www.ametys.ma/sites/default/files/webform/05_0.html
Answer:
Both people did the same type of general question, but Jenna's method uses the distributive property to do it mentally.
Step-by-step explanation:
Jenna's Method: Uses distributive property to break it all down and do it mentally.
Mia's Method: She broke the equation down so much that the answer will be more complex to find.
