=-35(4s-t)+21(4s-t)
=-140s+35t+84s-21t
=-140s+84s+35t-21t
=-56s+14t
You are told x = 8y -4
Replace x in the second equation with 8y-4:
8y-4 + 8y = 6
Combine like terms:
16y-4 = 6
Add 4 to both sides:
16y = 10
Divide both sides by 16:
Y = 10/16
Simplify:
Y = 5/8
Now replace y with 5/8 do find x:
X = 8(5/8) -4 = 5-4 = 1
X = 1, y = 5/8
(1,5/8)
Given, local sales tax rate = 7%
The selling price of car = $26,200
Now to find the sales tax for the car we have to find 7% of $26,200.
7% of 26,200 = 26200×(7/100) = (26200×7)/100 = 183400/100 = 1834
So the total sales tax paid = $1834
Now to get total cost of the car we have to add the sales tax we have got with the selling price of the car.
So, the total cost of the car = Selling price of the car + sales tax
= $26,200 + $1834
= $28,034
So we have got the required answers
Sales tax = $1834 and total cost of the car = $28,034
Answer:
tanΘ = - 
Step-by-step explanation:
Given
cosΘ = 
= 
The right triangle has sides 7, 24, 25 ← Pythagorean triplet
with adjacent = 7 and opposite = 24
Since position is in fourth quadrant then tanΘ < 0 , thus
tanΘ = -
