Answer:
$42
Step-by-step explanation:
Every week, the price of jeans reduced by $6.
The total value of price reduction over the 7-week period can be calculated as the product of price reduction per week and the number of weeks. Thus,
Total price reduction = price reduction per week x number of weeks
= $6 x 7
=$ 42
Answer:
Every 30 years you'll have half left
After 30 years = 900 grams
after 60 years 450 grams
Step-by-step explanation:
Answer:
The discrimant of this equation is 144.
Step-by-step explanation:
First you have to move all the variables to one side to make the equation/expression into 0 by substracting 8x² to both sides :
9x² + 14x + 13 = 8x²
9x² + 14x + 13 - 8x² = 8x² - 8x²
x² + 14x + 13 = 0
It is given that the formula of discriminant is, D = b² - 4ac where a&b&c represent the number of the equation, ax²+bx+c = 0 :
x² + 14x + 13 = 0
D = b² - 4ac
= 14² - 4(1)(13)
= 196 - 52
= 144
Answer: 13 hours
Step-by-step explanation: I divided 60 by 5 to figure out how much she makes a hour and got 12 dollars an hour then I divided 156 by 12 and got the number of hours she worked which was 13
