Răspuns :
Răspuns:
1)36/100=a/125
a*100=125*36
a=125*36/100
a=45
2)66/a=12/824
12*a=824*66
a=824*66/12
a=412*11
a=4352
3) a/24=15/4
4*a=15*24
a=15*24/4
a=15*6
a=90
4)
17/6=a/96
6*a=17*96
a=17*96/6
a=272
Explicație pas cu pas:
Explicație pas cu pas:
Bună :)
[tex]\space[/tex]
[tex]\bf\frac{36}{100} = \frac{a}{125}[/tex]
[tex]\bf 36 \times 125 = 100 \times a [/tex]
[tex]\bf 4500 = 100 \times a [/tex]
[tex]\bf a = 4500 : 100 [/tex]
[tex]\bf\boxed{\boxed{a=45}}[/tex]
[tex]\space[/tex]
[tex]\bf\frac{66}{a} = \frac{12}{824}[/tex]
[tex]\bf 66 \times 824 = a \times 12 [/tex]
[tex]\bf 54384 = a \times 12 [/tex]
[tex]\bf a = 54384 : 12 [/tex]
[tex]\bf\boxed{\boxed{a=4532}}[/tex]
[tex]\space[/tex]
[tex]\bf\frac{a}{24} = \frac{15}{4}[/tex]
[tex]\bf a \times 4 = 24 \times 15 [/tex]
[tex]\bf a \times 4 = 360 [/tex]
[tex]\bf a = 360 : 4 [/tex]
[tex]\bf\boxed{\boxed{a=90}}[/tex]
[tex]\space[/tex]
[tex]\bf\frac{17}{6} = \frac{a}{96}[/tex]
[tex]\bf 17 \times 96 = 6 \times a [/tex]
[tex]\bf 1632 = 6 \times a [/tex]
[tex]\bf a = 1632 : 6 [/tex]
[tex]\bf\boxed{\boxed{a=272}}[/tex]
[tex]\space[/tex]
Succes :)