Tìm A \(\in N\)
a) 697 : \(\frac{15.a+364}{a}=17\)
b) 92.4 - 27 = \(\frac{a+350}{a}+315\)
tìm a:
a) \(697:\frac{15.a+364}{a}=17\)
b) \(92.4-27=\frac{a+350}{a}+315\)
tim x\(\in\)N, biet
a)697:\(\frac{15.x+364}{x}\)=17
b)92.4-27=\(\frac{x+350}{x}\)+315
khong can lam nua dau minh biet lam roi
Tìm số tự nhiên a:
a)697:15.a+364:a=17
b)92.4-27=a+350:a+315
697 : (15.a+364) \ a =17
92.4 -27 = (a+350) \ a+315
tịt???????????????????????????????????????___________________????????????????????????????????????????????????
\(\frac{15.a+364}{a}\)= 697:17=41
15+\(\frac{364}{a}\)=41
\(\frac{364}{a}\)=41-15=26
a=364:26
a=14
368-27=\(\frac{a+350}{a}\)+315
314=\(\frac{a+350}{a}\)+315
\(\frac{a+350}{a}\)=341-315
\(\frac{a+350}{a}\)=26
a+350=26.a
26.a-a=350
(26-1).a=350
25.a=350
a=350:25
a=14
1 Tìm số tự nhiên a, biết rằng:
a) \(697:\frac{15.a+364}{a}=17\)
b)\(92.4-27=\frac{a+350}{a}+315\)
\(a.697:\frac{15a+364}{a}=17\)
\(b.92.4-27=\frac{a+350}{a}+315\)
a.\(697:\frac{15a+364}{a}=17\)
b.\(92.4-27=\frac{a+350}{a}+315\)
1.TÌM X,
A. 697:\(\frac{15.X+364}{X}\)=17
B. 92.4-27=\(\frac{X+350}{X}\)+315
a) \(697:\frac{15X+364}{X}=17\)
\(\Rightarrow\frac{15X+364}{X}=697:17=41\)
\(\Rightarrow15X+364=41X\)
\(\Rightarrow364=41X-15X=26X\)
\(\Rightarrow X=14\)
A.suy ra: 15x+364/x=41
suy ra: 15x/x+364/x=41
suy ra: 15 + 364/x=41
suy ra: 364/x =26
suy ra: 364:x=26
suy ra: x= 14 (T/M)
B. 92.4-27=x+350/x+315
suy ra: 341=x/x+ 350/x +315
suy ra: 26 =1+350/x
suy ra: 25=350/x
suy ra: 350:25=x
suy ra: 14=x (T/M)
Vậy a. x=14
b. x=14
tìm x:
\(697:\frac{15.x+364}{x}=17\)
\(92.4-27=\frac{x+350}{x}+315\)