The correct answer should be the first option.
Answer:
x = 14
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
x² + x² = (14
)²
2x² = 392 ( divide both sides by 2 )
x² = 196 ( take the square root of both sides )
x = 
= 14
Thus the congruent legs are 14 cm
Just a little tip f(x) means y. Even if it says a(x) it still means y. Hope this made it a slight bit easier sorry I couldn't help more than this.
Here' s the equation for one year:
0.025(3000) + 3000
Because it is 5 years:
5(0.025(3000)) + 3000
0.075(3000) + 3000
We can make it simpler:
1.075(3000)
Multiply:
3225
You will have $3225
so we have 3 folks painting 4 walls, now each one of them works for 32 minutes
person 1............. 32 mins
person 2............. 32 mins
person 3............. 32 mins
for a total of 32+32+32 = <u>96 minutes worth of work</u>. That's for 4 walls, how many minutes worth is just 1 wall?
96 ÷ 4 = 24 mins.
so to paint a wall, it takes 24 mins of work worth.
so then, to paint 7 walls, that'd be 7 * 24 = 168 minutes worth of work.
what about for 4 folks doing it? How many times does 4 go into 168? 168 ÷ 4 = 42 mins.
