Siemka
Mam tutaj 2 zadania do rozwiązania
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Z góry dzięki :)
zad1
x+1,5x+x+8=50
3,5x=50-8
3,5x=42 //:3,5
x=12
AB=12
BC=1,5 *12=18
CA=12+8=20
zad2
Pierwsza figura
x+x-8+x-11+x-7=62,4
x+x+x+x=62,4+8+11+7
4x=88,4 //:4
x=22,1
AB=22,1
BC=22,1-8=14,1
CD=22,1-11=11,1
AD=22,1-7=15,1
Druga figura
x+3x-10+16-x+4x-21+2x=62,4
x+3x-x+4x+2x=62,4+10-16+21
7x=77,4 //:7
x=11,05
AB=11,05
BC=3*11,5-10=33,15-10=23,15
CD=16-11,05=4,95
DE=4*11,05-21=44,2-21=23,2
AE=2*11,05=22,1
zadanie15x+1,5x+x+8=503,5x+8=503,5x=50-83,5x = 42 |:3,5x=12AB = 12BC = 12 + 0,5 *12= 12+6=18CA = 12+8=20
zadanie 16x-8+x-11+x-7+x=62,44x-26=62,44x=62,4+264x=88,4 |:4x=22,1AB = 22,1 BC = 22,1-8=14,1CD = 22,1-11=11,1DA= 22,1-7=15,1X+3X-10+16-x+4x-21+2x=62,49x-15=62,49x=62,4+159x=77,4 |:11x=8,6AB=8,6BC=3*8,6 - 10=25,8-10=15,8CD=16-8,6=7,4DE=4*8,6-21=34,4-21=13,4AE=2*8,6=17,2
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zad1
x+1,5x+x+8=50
3,5x=50-8
3,5x=42 //:3,5
x=12
AB=12
BC=1,5 *12=18
CA=12+8=20
zad2
Pierwsza figura
x+x-8+x-11+x-7=62,4
x+x+x+x=62,4+8+11+7
4x=88,4 //:4
x=22,1
AB=22,1
BC=22,1-8=14,1
CD=22,1-11=11,1
AD=22,1-7=15,1
Druga figura
x+3x-10+16-x+4x-21+2x=62,4
x+3x-x+4x+2x=62,4+10-16+21
7x=77,4 //:7
x=11,05
AB=11,05
BC=3*11,5-10=33,15-10=23,15
CD=16-11,05=4,95
DE=4*11,05-21=44,2-21=23,2
AE=2*11,05=22,1
zadanie15
x+1,5x+x+8=50
3,5x+8=50
3,5x=50-8
3,5x = 42 |:3,5
x=12
AB = 12
BC = 12 + 0,5 *12= 12+6=18
CA = 12+8=20
zadanie 16
x-8+x-11+x-7+x=62,4
4x-26=62,4
4x=62,4+26
4x=88,4 |:4
x=22,1
AB = 22,1
BC = 22,1-8=14,1
CD = 22,1-11=11,1
DA= 22,1-7=15,1
X+3X-10+16-x+4x-21+2x=62,4
9x-15=62,4
9x=62,4+15
9x=77,4 |:11
x=8,6
AB=8,6
BC=3*8,6 - 10=25,8-10=15,8
CD=16-8,6=7,4
DE=4*8,6-21=34,4-21=13,4
AE=2*8,6=17,2