Answer:
y = 0.10x + 8, $12
Step-by-step explanation:
y = monthly bill
x = number of message units
Each message unit costs $0.10, so the cost of x message units is 0.10x. The phone adds $8 to the monthly bill. Therefore:
y = 0.10x + 8
If x = 40, then:
y = 0.10 (40) + 8
y = 4 + 8
y = 12
The monthly bill is $12.
we are given three angles
first angle =x-4
second angle =3x
third angle =100
we can see that this is a triangle
and we know that
sum of all angles in any triangle is always 180
so,
first angle + second angle + third angle =180
now, we can plug values
and we get
now, we can solve for x
................Answer
Answer:
15%
Step-by-step explanation:
Percent is (usually) out of 100. So since the unit is already 100 you can just look at how much she did lose. (^-^)
You are basically trying to find the area of two triangles and a rectangle.
Rectangle= A= length*width
Triangle= A= 1/2*base*height
Rectangle:
1.5*1.9= 2.85
Two triangles:
A= 1/2* 0.5*1.5
A=1/2*.75
A=0.375
Multiply that by two, because the triangles are the same.
.75
.75+2.85= 3.6
3.60 ft^2 <== the answer :)
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B:15 Students
This is because 41 students (French) + 22 students (German) = 63 students
Of those 63, 9 are taking both French and German but they are already included in the counts of 41 and 22.
Since we know the languages of 63, we subtract 63 from 78 to find those who are taking neither.
78-63=15
