1 answer:
1. X-3=13 X=16
2. 45/9=5 M=5
3. 18•6=108 108/6=18
4. 17+8=25
5. 7•4=28
6. 7•9=63 63/7=9
7. 12+20=32 32-12=20
8. Y=75 3•25=75
9. 1/5r=15 r=15•5 r=75
10. 2y-6=34 2•20=40 40-6=34 y=20 I think
11. N=4 4+5=9
12. 16+3=19
13. 30+7= 37 p=37
14. 75/15=5 15•5=75 k=5
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X is 12 and y is 15 because of 3,4,5 triangles
Perimeter = 2(a+b)
= 2(2.8+16.5)
=2(19.3)
Perimeter = 38.6
Area=base x height
=2.8 x 11.5
=32.2
Answer:
x - y + z = 8
2x +3y -z= -2
3x - 2y -9z = 9
Step-by-step explanation:
[1 - 1 1 8]
[2 3 -1 -2]
[3 -2 -9 9]
Step-by-step explanation:
Um...wouldn't that be 3.5 inches?
