Answer:
Step-by-step explanation:
The percent change formula is
original number - new number all divided by the original number times 100. For us that looks like this:
which simplifies to
which is a 7.5% decrease.
Answer:$3
Step-by-step explanation:
You always divide y by x. In this case 6/2 when you set up a chart. When you do this you get $3 unit rate.
1 (unit rate) 2
___________=_____
x (unit rate price) 6
Use cross products
1(6)=x(2)
6=2x
_____
2 2
x=3
Answer:
153
Step-by-step explanation:
<u><em>Box 1:</em></u>
180 = 124 + (5x + 11)
56 = 5x + 11
45 = 5x
x = 9
<em><u>Box 2:</u></em>
RT = QS
x + 9 = 2x - 5
x = 14
<u><em>Box 3: </em></u>
14x - 3 = 18x -19
16 = 4x
x = 4
<em><u>Box 4:</u></em>
180 = (9x - 8) + (7x - 4)
180 = 16x - 12
192 = 16x
x = 12
<em><u>Box 5:</u></em>
(6x + 34) = (12x - 8)
42 = 6x
x = 7
<em><u>Box 6:</u></em>
45 = 7x - 25
70 = 7x
x = 10
<em><u>Box 7: </u></em>
54 - x = 3x - 10
64 = 4x
x = 16
<u><em>Box 8:</em></u>
12x + 1 = 9x + 16
3x = 15
x = 5
<u><em>Box 9:</em></u>
3x + 2x - 5 = 90
5x - 5 = 90
5x = 85
x = 17
Final Code:
(9)(17) = 153
C0 x=10. you set the two equal to each other and solve.