Question 1:
For this case, the first thing we must do is define variables.
We have then:
x: number of nickels
y: number of dimes
We write the system of equations that adapts to the problem.
We have then:
0.05x + 0.10y = 6.10
x + y = 67
Solving the system we have:
x = 12
y = 55
Answer:
there are 12 nickels
Question 2:
For this case, the first thing we must do is define variables.
We have then:
x: Allan's score
y: Dave's score
We write the system of equations that adapts to the problem.
We have then:
x + y = 375
x = 2y-60
Solving the system we have:
x = 230
y = 145
Answer:
Dave: 145 Allan: 230
9^2 / 3(1)
81 / 3 =27
A is the answer
1.84 , √5 , 2.3 , √2
√5 approximate value 2.2
√2 approximate value 1.4
1.84 , 2.2 , 2.3 , 1.4
= 2.3 > 2.2 > 1.84 > 1.4
= 2.3 > √5 > 1.84 > √2
