Answer:
A is the answer I think. Either way, they are congruent
Step-by-step explanation:
Answer:
25 to 1
Step-by-step explanation:
5a/2b = 1/10
cross-multiply:
50a = 2b
simplify to get 25 : 1
Cost of the spa treatment = $42
Percentage of sales tax = 6%
Percentage of tips = 20%
Normally the tips amount is calculated before adding sales tax.
Then
Amount of tips given = (20/100) * 42
= (1/5) * 42
= 8.40 dollars
Amount of sales tax taken = (6/100) * 42
= 252/100
= 2.52 dollars
Then
The total amount spent for spa treatment = (42 + 8.40 + 2.52) dollars
= 52.92 dollars
So we can see that $52.92 has been spent in total for spa treatment and this amount includes a sales tax of $2.52 and a tip of $8.40.
The Answer:
36/121
(6/11)^2 = 6/11 multiplied by itself two times
6/11 x 6/11
Numerator: 6 x 6 = 36
Denominator: 11 x 11 = 121
So the answer is 36/121
Hope it helped!
2x + y = 4
2x - y = 8
-------------add
4x = 12
x = 12/4
x = 3
2x + y = 4
2(3) + y = 4
6 + y = 4
y = 4 - 6
y = -2
okay....so x = 3 and y = -2
3x - y = ?
3(3) - (-2) = ?
9 + 2 = 11....so ur answer is 11
