Answer:
x = 25
Step-by-step explanation:
Noting that these figures are similar, we set up and solve an equation of ratios:
x 30
---- = ------
15 18
Cross multiplying, we get:
18x = 30(15), or 3x = 5(15) = 75. Then x must be 25.
Answer:
q=<u>bp</u>
<u> </u><u> </u><u> </u><u> </u>a- cp
Step-by-step explanation:
<u>a</u> - <u>b</u><u> </u>= c
p q
Multiply through by pq
qa - bp = cpq
qa - cpq = bp
q [a-cq] = bp
q= <u>bp</u>
<u> </u><u> </u><u> </u><u> </u><u> </u>a-cp
The expansion of the binomial:
( 2 x² + y² ) ^4 =
=
Answer:
Ace Truck
Acme Truck
Step-by-step explanation:
The cost function to lease a box truck from a company has the following format:
In which F is the fixed cost and a is the cost per mile m.
(a) Find the daily cost of leasing from each company as a function of the number of miles driven.
Ace Truck
$30/day and $0.50/mi. This means that 
. So
Acme Truck
$25/day and $0.55/mi. This means that 
. So
5(v+2) = -2(7v-3) + 9
------------------------------------
Distribute:
5v + 10 = -14v + 6 + 9
Combine Like Terms
5v + 10 = (-14v+9v)+6
5v + 10 = -5v + 6
Subtract -5v from both sides
10v + 10 = 6
Subtract 10 from both sides
10v = -4
Reduce
5v = -2
Divide both sides by 5
v = -2/5
Simplify
v = -0.2
