Using the last bit of my points so pls help me Match the word problems to their answers. Write the letter of the answer
that matches the problem.

1. A violin was on sale of 50% off. The sale price
is $50. What was the original price?

a. $26

2. Sally buys a hand bag. There was a discount
of 30%. If Sally paid $20, what was the original
price?
b. $57

3. A fan is marked up 40% on the original price.
The original price was $20. What is the new price
of the fan before sales tax?
c. $68

4. A parrot is selling for 40% off the original
price. The original price was $90. What is the
sale price of the parrot?
d. $30

5. Jack wants to buy a pair of trousers for $60.
When he went to the store he found that the
price was marked down by 20%. How much do
they cost now?
e. $100

6. Andrea wants a diamond necklace and its
selling price is $60. There was a discount of 5%.
How much did Andrea pay?

f. $54

7. Janelle buys a dining table on a 15% discount
during a sale. If the price was $80, How much
did she pay?
g. $48

8. Kelly wants to buy a magazine that is $25.
Later the magazine was marked up an additional
20%. What is the new price?
h. $28.00

true

step-by-step explanation:

a.   we have two

lines:   y = 4-x   and  

y = 8-x^-1

given two simultaneous equations that are both to be

true, then the solution is the points where the lines cross. the intersection is

where the two equations are equal. therefore the solution that works for both

equations is when

4-x = 8-x^-1

this is where the two lines will cross and that is the

common point that satisfies both equations.

b.   4-x = 8-x^-1

  x           4-x       8-x^-1

-3           7        

8.33

-2           6         8.5

-1           5         9

  0           4        

-

  1           3        

7

  2           2        

7.5

  3           1         7.67

the table shows that none of the x values from -3 to 3 is

the solution because in no case does

4-x = 8-x^-1

to find the solution we need to rearrange the equation to

find for x:

4-x = 8-x^-1

multiply both sides with x:

4x-x^2 = 8x-1

x^2+4x-1=0

x= -4.236, 0.236

therefore there are two points that satisfies the

equation.

find y:  

x=-4.236

y = 4-x   = 4 – (-4.236)

= 8.236

y = 8-x^-1 =   .236)^-1

= 8.236

x=0.236

  y = 4-x   = 4 – (0.236) = 3.764

y = 8-x^-1 =   8-(0.236)^-1

= 3.764

thus the two lines cross at 2 points:

(-4.236, 8.236) & (0.236, 3.764)

c.   to solve

graphically the equation 4-x = 8-x^-1

we would graph both lines: y = 4-x   and   y

= 8-x^-1

the point on the graph where the lines cross is the

solution to the system of equations.

just graph the points on part b on a cartesian coordinate

system and extend the two lines.   the

solution is, as stated, the point where the two lines cross on the graph.

step-by-step explanation:

mark brainliest!

step-by-step explanation:

i'm pretty sure it would take 20 hours because it's half the men so you multiply the number of hours it takes by 2