9514 1404 393
Answer:
x = -7, x = 9
Step-by-step explanation:
We presume your equation is ...
x² -2x -63 = 0
Factors of -63 that have a sum of -2 are -9 and +7. Then the factored equation is ...
(x -9)(x +7) = 0
Solutions make the factors zero.
x -9 = 0 ⇒ x = 9
x +7 = 0 ⇒ x = -7
The solutions to the quadratic equation are x = -7 and x = 9.
Answer:
The markup rate on each box=41%
Step-by-step explanation:
The markup rate is the additional price that a good is sold at expressed as a percentage. This can be expressed as;
R={(S-C)/C}×100
where;
R=markup rate
S=selling price
C=cost
In our case;
R=unknown
S=$20.50
C=$14.50
replacing;
R={(20.5-14.5)/14.5}×100
R=(6/14.5)×100
R=41.38% rounded off=41%
The markup rate on each box=41%
Answer:
The other angle is 58 degrees
Step-by-step explanation:
Supplementary angles add to 180 degrees
Let the other angle be x
x+122 = 180
Subtract 122 from each side
x+122-122= 180-122
x = 58
The other angle is 58 degrees
To find this answer you simply divide 250$ by 300$ you would then get 83% that is not the answer though you then subtract 83 from 100 and get 17 and that is the discount
Step-by-step explanation:
True
When an equation has one solution,The variable terms on both sides are the same
