27x^2-81x-9x+27 In this case, just in your mind multiply 27 (coefficient of x^2) by the constant value 27(the end value of the quadratic trinomial). Then find factors that give you the value -90 when you add and 729 (27*27) when you multiply.
Factorise the values
27x( x-3)-9(x-3)
Which will give you
(27x-9)(x-3)
Answer:
14
Step-by-step explanation:
100% - 30%= 70% (the times they've won)
0.7x20=14
Answer:
B. 120 and C. 100 = 0.4 DIFFERENCE Between the two pairs.
Step-by-step explanation:
2/-1 = -2
-6/ 5 = -1.2
the difference where we divide by /2 is -1.2 - 2 = 0.8 / 2 = 0.4
0.4 divides into all options ABC however 36 it divides 9 times
120 it divides 30 times
and 100 is divides 25 times.
9/ 0.4 = 22.5 and is wrong
30 / 0.4 = 75
25 / 0.4 = 62.5 and is wrong
therefore B 120 is correct.
Answer:
T(x) or total account balance = C(x) + S(x)
Step-by-step explanation:
where = C(x) = -2401 - 140 + 1,400
and
S(x) = 4503 + 100
This implies that:
C(x) = 3,661
S(x) = 4,603
Therefore, T(x) 3,661 + 4,603 = 8,264
T(x) is the total account balance or the addition of the balances of checking and saving accounts.
C(x) is the checking account balance.
S(x) is the saving account balance.
Answer:
7a) The slope of the line is (simplified) 1/2, and this represents the number of berries Kaley should depending on the amount of Yogurt.
7b) Kaley should use 18 berries. If she uses 2 berries per 1 cup of yogurt, then you would multiply that by 9.
8) Heidi ran 2/3 laps per minutes, not 3/2. The mistake she made was by putting x over y, not y over x.
