Answer:
john's age= x + 5
his sister's age= x
x + 5 + x = 150
2x + 5 = 150
2x = 150 - 5
2x = 145
x = 145 ÷ 2
x = 72.5
so, 72.5 + 5 = 77.5
john's present age is = 77.5
his sister's present age is = 72.5
Answer:
Form an equation:
let x be the price of a shirt
Then, the price of a sweater would be x - 5
So you would have:
4(x - 5) + 3x = 200
simplify
4x - 20 + 3x = 200
7x - 20 = 200
add 20 to both sides
7x = 220
divide both sides by 7
x = about 31.43
That means the cost of the sweater would be 31.43 - 5 = 26.43
<span>√4x... the 4 would be right above the x. In words this would be the cubed root of x.</span>
(3-i)2=3*2-2i=6-2i
HAVE A NICE DAY!! ^^
Answer: X = 17
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
2(x−5)=24
(2)(x)+(2)(−5)=24(Distribute)
2x+−10=24
2x−10=24
Step 2: Add 10 to both sides.
2x−10+10=24+10
2x=34
Step 3: Divide both sides by 2.
2x
/2 = 34/
2
x=17