Answer: B. x, in the second equation
Step-by-step explanation:
The given system :
To apply the substitution method , first we need to select the best variable and a equation which is easy to simplify.
From the given system equation (2) have all the numbers which are multiples of 3.
Then we divide 3 on both sides of equation (2), we get
Therefore, the best variable to solve for and from what equation is x, in the second equation.
10/3mi/1hr
10/3mi/1hr*21/8hrs=10*21/24=10*7/8=70/8miles
=35/4miles=8 3/4 miles
8 + 4 + 3 + 6 = 21There are 21 plants altogether.21 is 3 times 7.For every 21 plants there are 6 pumpkin plants, sofor every 7 plants, there are 2 pumpkin plants.
By multiplying by 2
we get 14/100
which is 14 %
Answer:
u
Step-by-step explanation:
Solution:-
- Claim : pizza shop deliver in 30 minutes or less or it is free.
- Alternate : People who live in on opposite side of town believe it will take the pizza shop longer than 30 minutes to make and deliver the pizza.
- Sample size taken n = 50 > 30
- The sample mean = 32 mins
- The appropriate symbol for sample mean used in test statistics is (u).
