Answer:
11a - 2b
Step-by-step explanation:
Like terms can be further simplified.
3a + 8a -2b
= <u>11a - 2b</u> [ a and b are not like terms so they cannot be subtracted ]
If y
y
varies directly as x
x
and y=15
y
=
15
when x=24
x
=
24
, find x
x
when y=25
y
=
25
.
Find the constant of variation.
k=yx=1524=58y=58x k=
y
x
=
15
24
=
5
8
y=
5
8
x
To find x
x
, substitute 25
25
for y
y
.
25=58xx=40
(2,100*1)+(x*.05)=2,400
The first part is her salary per month multiplied by one month. The second part is her sales times the commission rate. Finally the last part is her ending earning goal.
Hope this helped!
20/100 = 0.2
0.2 * 39.50 = 7.90
They should leave a $7.90 tip.
5/100 = 0.05
39.50 * 0.05 = 1.975 and rounds to 1.98
They should pay $1.98 in sales tax.
