Answer:
Step-by-step explanation:
Number of attendees the first day = x.
<u>Solve the following equation for x:</u>
- x + (x + 15) = 269
- 2x = 269 - 15
- 2x = 254
- x = 254/2
- x = 127
Answer:
x=6
Step-by-step explanation:
The angles are alternate exterior angles, which are equal
19x-4 = 110
Add 4 to each side
19x -4+4 = 110+4
19x = 114
Divide by 19
19x/19 = 114/19
x=6
Answer:
2000
Step-by-step explanation:
The number in the next place, the hundreds place, is 4, which is less than 5. Therefore, you round down, to 2000.
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Answer:
f(12) = - 20
Step-by-step explanation:
To evaluate f(12), substitute x = 12 into f(x), that is
f(12) = - 2(12) + 4 = - 24 + 4 = - 20
Answer:
Length = 34
Step-by-step explanation:
Perimeter of rectangle = a+a+b+b = 2(a+b)
Let a = length = 2b - 4
Let b = width
Therefore
(2b-4) + (2b-4) + b + b = 106 cm
Bracket off
2b-4+2b-4+b+b = 106cm
Collect like terms
2b+2b+b+b-4-4 = 106cm
6b-8 = 106
6b = 106+8
6b = 114
b = 114÷6
b = 19
To get a
2b - 4
2(19) - 4
38-4
= 34
