Answer:
2
Step-by-step explanation:
2u+10=22+u
or,2u-u=22-10
or, u=2____1
Answer:
the X is the zeros
Step-by-step explanation:
Let x be the salary. If x is more than the average, we want
If x is less than the average, we want
The two conditions can be summarized into
In fact, the absolute value of the difference of two numbers tells you "how far" those two numbers are, without taking into account which of the two is bigger.
Answer:
a
Step-by-step explanation:
Answer:
number of adult shirts sold (a) = 20
number of youth shirts sold (b) = 10
Step-by-step explanation:
a = number of adult shirts sold
y = number of youth shirts sold
30 = a + y
$324.50 = 11.50a + 9.45y
This is the resulting system of equations from the given information in the problem.
Solve for y in the first equation and then substitute the equation for y into the second equation :
a+y=30 --> y=30-a
324.50 = 11.50a + 9.45(30-a)
Solve for a.
324.50 = 11.50a + 283.5 - 9.45a
41 = 2.05a
a = 20
Now that we have solved for a, we can back substitute into our equation for y and solve.
y=30-(20)
y = 10
CHECK:
(20)+(10) = 30 True
(11.50)(20) + (9.45)(10) = 324.5 True
