Answer:
(-2,2)
Step-by-step explanation:
x+2y=2 and 7x-3y=-20
x+2y=2
-2y -2y
7(-2y+2)-3y=-20
-17y+14=-20
-14 -14
-17y=-34
^divide both sides by -17
y=2
x(-2)(2)+2
x=-2
Answer:
c) $18 for a pack of 15 pens
Step-by-step explanation:
calculate the cost for 1 pen then compare
a) 7 ÷ 5 = 1.4
b) 15 ÷ 10 = 1.5
c) 18 ÷ 15 = 1.2 (has the lowest cost for a pen)
d) 48 ÷ 30 = 1.6
Answer:
$1,440 is used to buy referenced books.
Step-by-step explanation: 36% of $4,000 is $1,440
A, B, C are all more than -11 when divided by 3.
If you assume the question was phrased wrongly and they meant less than, then D is the answer.
Edit: seems like the question is incomplete, what is the number divided by?