$6 (40) + $9 (6.5) + $12 (8) =
$240 + $58.50 + $96=
$394.50
Answer:
5
Step-by-step explanation:
The response is 5. The slope is always the coefficient of x in a slope-intercept equation.
To solve this problem you must apply the proccedure shown below:
1. You must make a system of equations, as below:
2. Let's call:
x: the number of first class tickets bought.
y: the number of coach tickets bought.
3. Then, you have:
x+y=7 (First equation)
970x+370y=3790 (Second equation)
x=7-y
4. By substitution, you have:
970x+370y=3790
970(7-y)+370=3790
y=5
x=7-y
x=7-5
x=2
Therefore, the answer is:
- Number of first class tickets bought=2
- Number of coach tickets bought=5
The ratio of areas is the square of the ratio of perimeters (or any linear measure). Then the ratio of perimeters is the square root of the ratio of areas:
.. √(16/49) = 4/7
Selection D is appropriate.
Answer:
4 and 5 hope this helps
Step-by-step explanation:
