The number of calculators
= Number of boxes * calculators in each box
=18* 12
= 216 calculators
Answer:
$3.50
Step-by-step explanation:
42 divided by 12 is the price of one cookie.
42 divided by 12 = $3.50
hope this helps :)
Answer: Exact Form: x
=
−
45
/2
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
n = -5, 3.
Step-by-step explanation:
n^2 + 2n - 15 = 0
Let's check if we can factor this quadratic:
We need 2 numbers whose product is -15 and whose sum is +2.
There are 2 such numbers and they are +5 and -3, so the factors are:
(n + 5)(n - 3) = 0.
n + 5 = 0 or n - 3 = 0
therefore the zeroes are -5 and 3.
Answer:
a
Step-by-step explanation:
