Answer:
Yes it is true and 4 mark not ture
Step-by-step explanation:
$40/12 = unit rate simplify = 10/3
$10/3 per book
18 * 10/3 = $60 for 18 copies
Answer:
Q.#1 is a
Q.#2 is d
Step-by-step explanation:
hope this helps:)
Answer:
r = 1/5
Step-by-step explanation:
Substitute x=15 and y=3 into the equation given.
Transpose so that r = 3/15
Simply 3/15
r = 1/5
Answer:
44 degrees
Step-by-step explanation:
x
Let the supplement/compliment by
y
x+
y=90
Complimentary angles add up to 90 degrees.
x+3
y=180
Supplementary angles add up to 180 degrees, the other angle is thrice the other compliment.
Evaluating this as a system:x+y=90 Isolate x:x=90−y Input into the other equation:(90−y)+3y=180Combine like terms, isolate y and its coefficients:2y=90 Isolate yy=45 Input into the first equation:x+45=90 Isolate x:x=45 degrees
