Answer:
a = 43 / 30
Step-by-step explanation:
-7 ( 8a -9 ) = -23 + 4a
-56a + 63 = -23 +4a
-60a + 63 = -23
-60a = -86
a = 43 / 30
Given that <span>Mrs.
Hawk assigns her students an average of no more than 15 questions on
each assignment. On their first 5 assignments Mrs. Hawk’s students had
11, 10, 13, 14, and 14 questions.
Let x be the number of questions she can have on the sixth assignment, then the inequality that
Mrs. Hawk can use to determine the number of questions she can have on
the sixth assignment is given by

</span>
There must be two binomial factors. Thus, we eliminate Answer A, which contains only one such factor.
(x-3)(x+3) has the form (a-b)(a+b), which equals a^2 - 3^2. This is a special product. Eliminate Answer B, because a^2 - 3^2 does not equal x^2 - 6x + 9.
The middle term of x^2 - 6x + 9 is negative. This quadratic has the form x^2 - y^2, which is special product and whose factors are (x-y) and (x-y).
Thus, x^2-6x+9 = (x-3)(x-3) (Answer C)
Answer:
add up the prices of everything they're buying, divide it by 75 and then multiple the whole answer by 100.
Step-by-step explanation:
To find if 3 goes int 92
we need to divide 92 by 3
Figure of the division attached
The first part is 3 goes 3 times into 9 leaving remainder 0
We are left with 2 to divide
but since 3<2, we add 0 to the quotient and leave the 2 as the remainder
Hence 3 goes 30 times in 92 leaving a remainder of 2