Answer:
Over 150 cookies.
Step-by-step explanation:
$1=100 cents
$15=1,500 cents
1,500/10=150
The class must sell over 150 cookies to make profit.
Answer:
He will need 2 gallons of paint.
Step-by-step explanation:
28 x 18 = 504 ft
This is the answer because it starts off with $450 in total
Then Lani ADDS $225 every month, which is the m variable,
Because the $225 would be multiplied by m for every month she would add $255.
Answer:
the answer is B) y = 450 + 225m
Step-by-step explanation:
If she starts with $450 and every month she adds $225 then every month you add 225 to the 450.
ex)
after 5 months she will have $1575 in her account.
450 + 225m = y
450 + 225(5) = y
450 + 1125 = y
1575
Answer:
surfergirl your a life saver yes you are
Step-by-step explanation:
Answer:
x = - 3 or x = 7
Step-by-step explanation:
Given
f(x) = x² - 4x + 6
If f(x) = 27, then equating gives
x² - 4x + 6 = 27 ( subtract 27 from both sides )
x² - 4x - 21 = 0 ← in standard form
Consider the factors of the constant term ( - 21) which sum to give the coefficient of the x- term ( - 4)
The factors are - 7 and + 3, since
- 7 × 3 = - 21 and - 7 + 3 = - 4, hence
(x - 7)(x + 3) = 0
Equate each factor to zero and solve for x
x + 3 = 0 ⇒ x = - 3
x - 7 = 0 ⇒ x = 7