the answer is $32 you divide 160 by 5
Answer:
Step-by-step explanation:
hello :
5(x + 7)² = 245
(x + 7)² = 49
x=0 is solution but you have other solution -14 because :(-14+7)² = (-7)² =49
here is an solution Step-by-step :
(x + 7)² = 49 means : (x + 7)² = 7²
(x + 7)² - 7²=0 use identity : a²-b² = (a-b)(a+b)
a=x+7 and b= 7
(x+7-7)(x+7+7) = 0
x(x+14)=0
x=0 or x+14=0
so : x=0 or x= -14
Answer:
-29/7 =x
Step-by-step explanation:
3(x-6) -8 = -2+5(2x+1)
Distribute
3x-18-8 = -2 +10x+5
Combine like terms
3x-26 = 10x+3
Subtract 3x from each side
3x-3x-26 = 10x-3x+3
-26 = 7x+3
Subtract 3 from each
-26-3 = 7x +3-3
-29 = 7x
Divide each side by 7
-29/7 = 7x/7
-29/7 =x
Answer:
7%
Step-by-step explanation:
300/21 is 0.07, and 0.07 in percent form is 7%
3x-5y=13
(-3) (x-2y=5) = -3x+2y=-15
3x-5y=13
+
-3x+2y=-15
-3y=-2
Answer = y=2/3