Answer:
(8,6)
Step-by-step explanation:
Solve by elimination!
-2x-y=-22
2x-6y=-20
cross out, and merge!
-7y=-42
y = 6
Plugin y in one equation (I choose the easy one XD)
-2x-6=-22
-2x=-16
x = 8
Because 4 + 4 = 8 and you know that 3 is one less than one you could do 8-1= 7 so 4 + 3 = 7
Hi there!
a. So the electric guitar is sold for a sale price of $315 after the discount. The discount was 30%. Even though we get that amount off, we still pay 70% of the original price, because 100% (original price) - 30% is 70%.
b. An equation that can help us find the regular price of the item is through writing and solving a proportion. Set it up like this:
315/x = 70/100
This is because 315 is part of the whole and is 70% of the value of x.
How to solve it:
Okay. Let's solve this by cross multiplying the values. 315 * 100 is 31,500. 70 * x is 70x. That simplifies to 31,500 = 70x. Didivde each side by 70 to isolate the x. 70x/70 cancels out. 31,500/70 is 450. Let's check this by multiply the number by 70% and see what happens. 450 * 70% (0.7) is 315. There. x = 450. The regular price was $450.
Answer:
Step-by-step explanation:
f(x) = 6x-3
x = -2 : f(-2)= 6(-2) - 3 = -12-3 = -15
x = 0 : f(0)= 6(0) - 3= -3
<h2><u><em>
No</em></u></h2>
A parallelogram does not have symmetry.