X= -41/2
12x-20=14x+21
12x-20+20=14x+21+20
12x=14x+41
12x-14x=14x+41-14x
-2x=41
-2x/-2=41/-2
x=-41/2
Answer:
$16
Step-by-step explanation:
Gary has $4. (given)
Mary has twice as many dollars as Gary, so Mary has 2×$4 = $8.
Larry has 4 fewer dollars than Mary, so Larry has $8 -4 = $4.
Gary, Mary, and Larry together have $4 +8 +4 = $16.
Answer:
Option B) There is a 3 percent increase in the savings account each year.
Step-by-step explanation:
we have
This is a exponential function of the form
where
M(x) represent the amount of money in a saving account
x represent the number of years
a is the original deposit (y-intercept)
b is the base
r is the rate or percent increase
The percent increase per year is the base of the exponential function decreased by 1.
so
In this problem we have
---> original deposit
Therefore
The percent increase per year is 3%
Answer:
Cost is 7c+34.
Step-by-step explanation:
2(c+17) + 5c
=2c+34+5c
=7c+34