Answer:
67
Step-by-step explanation:
4x+3+15x-8=90(complementary angle)
x=5
now D = 15*5-8
d=67
Answer:
19
Step-by-step explanation:
you divide 266 by 14
Answer:
15
Step-by-step explanation:
3x+15=60
3x=45
x=15
Ok. For any price higher than $80, it will be cheaper for Jay to buy on line. Below $80, it will be cheaper to buy it at the store (assuming that there are no sale taxes)
This is why:
15%/100%= 12/x, x is the price of the car stereo.
(15)(x)=(12)(100)
15x= 1200
x=80 at this price it does matter whether he buys it on line or at the store. Because 15% discount on an item that costs $80 is $12. [ (.15)(80)=12]. He saves 12 dollars but he has to spend 12 dollars in shipping. So, he end up paying $80.. However, if the price of the item is more than 80, it will be cheaper for him to buy on line.
Answer:
The answer to your question is x = -22; y = 4
Step-by-step explanation:
System of equations
2x + 5y = -24 ------------- l
3x - 5y = 14 ------------- ll
Process
1.- Multiply equation l equation l by 3 and equation ll by -2
6x + 15y = -72
-6x + 10y = -28 Add the equations
0 + 25y = 100
2.- Solve for y
y = 100/25
y = 4
3.- Substitute y in equation l to find x
2x + 5(4) = -24
Solve for x
2x + 20 = -24
2x = -24 - 20
2x = -44
x = -44/2
x = -22