A family of
4
4
is buying cell phones. Each phone costs
x
x
dollars if the family buys the super plan which costs
$89
$89
for each family member. The total cost for each family member to have a phone with the super plan is
$1,952
$1,952
.

Part A

Which equation represents this situation?

A
4(x+89)=1,952
4(x+89)=1,952

B
(x+89)+4=1,952
(x+89)+4=1,952

C
4x+89=1,952
4x+89=1,952

D
4x(89)=1,952
4x(89)=1,952

Part B
What is the cost, in dollars, of each phone?

Each phone costs
$
$
.

0.85 or 85%

step-by-step explanation:

1) divide 23 by 27

2) round the decimal to the nearest 10

3) so your answer would be 0.85 or 85%

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3

-3.5 is the distance.

i've had this question so choose the one in the absolute value sign.