Answer:
x=5 and x=-5
Step-by-step explanation:
1. first you would subtract 6 from both sides to set the equation = to zero.
2. The equation would then be x^2-25=0.
3. that is a difference of two squares polynomial. So when you factor it, it is (x+5)(x-5)=0
4. by the zero product property, the roots are 5 and -5.
Answer:
<h2>b) 50in, 48in, 14in</h2>
Step-by-step explanation:
If <em>a ≤ b < c</em><em> </em>form of a right side, then <em>a² + b² = c²</em>
a) 3ft, 6ft, 5ft
3² + 5² = 6²
9 + 25 = 36
34 = 36 <em>FALSE</em>
b) 50in, 48in, 14in
14² + 48² = 50²
196 + 2304 = 2500
2500 = 2500 <em>CORRECT :)</em>
c) 53m, 48m, 24m
24² + 48² = 53²
576 + 2304 = 2809
2880 = 2809 <em>FALSE</em>
d) 8cm, 17cm, 14cm
8² + 14² = 17²
64 + 196 = 289
260 = 289 <em>FALSE</em>
Let
x = number of rs 50
y = number of rs 20
z = number of rs 10
Because there are 25 total notes,
x + y + z = 25 (1)
The ratio of rs 50 to rs 20 is 3:5, therefore
x = 0.6y (2)
The total amount is rs 590, therefore
50x + 20y + 10z = 590
or
5x + 2y + z = 59 (3)
Subtract (1) from (3).
4x + y = 34 (4)
Substitute (2) into (4).
4*(0.6y) + y = 34
3.4y = 34
y = 10
From (2), obtain
x = 6
From (1), obtain
z = 25 - 6 - 10 = 9
Answer:
Kaveri has
6 rs 50 notes,
10 rs 20 notes,
9 rs 10 notes.
Answer:
Step-by-step explanation:
6x-1=2x+5+4x-6
separate the variables in one side, numbers on the other side
6x-2x-4x=1+5-6
0=0
one solution
1184.7 should be the correct answer
