Answer:
Step-by-step explanation:
- 6(x - 7)= 2x + x + 9
- 6x - 42 = 3x + 9
- 6x - 3x = 9 + 42
- 3x = 51
- x = 51/3
- x = 17
Answer:
Brand A is the better deal!
Step-by-step explanation:
Let's start by comparing.
We know brand B has the following cost: 5 ounces = $3.75
10 ounces $7.50 and 16 ounces = $12
Now check the graph.
6 ounces cost $3
12 ounces cost $6
20 ounces cost $10
I don't think we need to look any further but brand A is the better deal!
Answer:80
Assume the number to be 400 for instance,
10% of 400 increased = 400 + ( 10/100 × 400 )
= 400 + 40 = 440
The resulting number decreased by its 10% = 400 - (10/100 × 400)
= 400 - 40 = 360
Now, net decrease = 440 - 360 = 80
Answer:
y - 1 = 1/6 (x + 6)
Step-by-step explanation:
The formula would be y - y1 = m (x - x1). So fill in the blanks with the slope and coordinates, because the x value is a negative the minus sign becomes a plus.
Since pi is equivalent to 3.14 and means 180°, therefore 1.75 which
is about half of pi should be at almost 90°. The cos of a 90° angle which is located on
the y axis should be zero, therefore cos 1.75 must be near zero. However in
this case it is near one, clearly his calculator is in degree mode that is why
he got an erroneous answer.
What Sam
can do to get the correct answer would be to convert his calculator into radian
mode or convert the given 1.75 rad into degrees:
θ = 1.75
rad (180° / π rad)
θ =
100.2676
<span>cos 100.2676
= -0.1782 which is now correct since it
is nearer to zero</span>
