Answer:
y=12
x=48
Step-by-step explanation:
Relationship shows that
y=1/4x
if we put y=12 and x=48 it holds.
Answer:
-127
Step-by-step explanation:
u(x)=2x-2
w(x)= -2x^2+1
w(u(5))=?
---------
u(5)= 2*5-2= 8
W(8)= - 2*64+1= -127
Answer:
b. 7x3 + 9x2 - 3x - 8
Step-by-step explanation:
Write the problem as a mathematical expression.
(4x3+6x2+2x−3)+(3x3+3x2−5x−5)
Remove parentheses.
4x3+6x2+2x−3+3x3+3x2−5x−5
Add 4x3
and 3x3
.
7x3+6x2+2x−3+3x2−5x−5
Add 6x2
and 3x2
.
7x3+9x2+2x−3−5x−5
Subtract 5x
from 2x
.
7x3+9x2−3x−3−5
Subtract 5
from −3
.
7x3+9x2−3x−8
Let's assume
total number of cards =x
Pristine printing business cards:
for $0.10 each plus a setup charge of $15
so, we get equation for cost as
Printing Place business cards:
for $0.15 each with a setup charge of $10
so, we get equation for cost as
now, we are given
cost from both companies are same
so, we can set costs equal
now, we can solve for x
so,
number of business cards is 100.........Answer
$6.41
Step-by-step explanation:
$42.75 x 15% (which is .15) = $6.41 is the tip
