Answer:
1<x<6
Step-by-step explanation:
subtract 1 from every side: 2<2x<12
divide 2 every side: 1<x<6
-2p-4=2
-2p = 2+4
-2p =6
p = 6/-2
p= -3
Formula for perimeter of a rectangle is:
P = 2 * (a+b)
This means that sum of two sides is:
64 = 2* (a+b)
a+b=32
Pairs of numbers that add to 32 are:
1+31
2+30
3+29
4+28
5+27
6+26
7+25
8+24
9+23
10+22
11+21
12+20
13+19
14+18
15+17
16+16
We do not consider last pair as it would represent square. Areas these sides cover are:
1*31=31
2*30=60
3*29=87
4*28=112
5**27=135
6*26=156
7*25=175
8*24=192
9*23=207
10*22=220
11*21=231
12*20=240
13*19=247
14*18=252
15*17=255
Maximum area is 255 and lengths of sides are 15 and 17. This answer makes sense because larger sides give larger area.
Answer:
Mary's investment after 2 years would be: 12000 x (1 + 1.5/100)^2 = 12362.7£
First things first.
It says the length is 175. Therefore:
A. The length 4 times plus 10
(175 x 4) + 10
= 700 + 10
= 710 ft
B. The length 3 times plus 10 laps
(175 x 3) + (500 x 16) //because one lap is 500 ft and it asks you for 16 laps
= 525 + 8000
= 8525 ft
C. The length 6 times plus 25
(175 x 6) + 25
= 1050 + 25
= 1075 ft
Hope it helps!