Answer:
x = 71
Step-by-step explanation:
18(x + 1) = -54
to start off, subtract 18 from both sides
18 - 18(x + 1) = -54 - 18
that should give you
x + 1 = 72
(its safe to take out paranthesis from problem by now) now take away 1 from each side
x + (1 - 1) = 72 - 1
that should give you
x = 71
Answer:
$156.86
Step-by-step explanation:
136.40 multiplied by .15 equals 20.46
136.40 plus 20.46 equals 156.86
Answer:
2/4 ÷ 2 = 2/4 × 1/2 = 2/8 = 1/4
or you can directly write 2/4÷2 = 1/4
Answer:
6) 6
9) 40
10) 
11) 13
Step-by-step explanation:
6)A right triangle rule: if 2 legs are equal, the hypotenuse is the length of that leg*
9) Pythagorean Theorem

We know the hypotenuse (41) so we substitute that for c and 9 for b now we need to find a
which gives us 40
10) same with #6 but we do the opposite. SInce we have the hypotenuse, we can divide that by
because we know that if 2 legs are equal, the hypotenuse is multiplied by
. Multiply the numerator and denominator by
because we can't have a square root in the denominator.
11) like #9 we have the a and b but we need to find c
a=5 b=12 c=r
so
which gives us 13