Hey there!!
Given:
... A=3B+7C
Subtracting 7C on both sides:
... A-7C=3B
Dividing by B on both sides:
... (A-7C)/3=B
<em>Hope my answer helps!</em>
Answer:
Step-by-step explanation:
This equation is in slop-intercept form. This means that the y-int is in the equation, it will always be the constant, so y is -18.
To find x, set y to 0.
0 = 8x - 18
18 = 8x
18/8 = x
9/4 = x
I believe it would be .21m. So for example.The memory stick is sold normally for $14, so to plug it into the equation it would be: .21(14), which gives you the discount of $2.94. Subtract that amount from the original price, and that gives you the sale price. .21(14)=2.94 14-2.94=11.06~~~~~Sale price
1.3 jmillion grains of sand
He paid 240 for a dozen tires (a dozen is 12)...so he paid 240/12 = 20 per tire
he sells 2 tires for as much as he paid for 3 tires...at 20 per tire, he paid (20 x 3) = 60.....so he sold 2 tires for 60...thats 30 per tire
so he is buying the tires at 20 a piece, but selling them at 30 a piece...so hes making a 10 dollar profit on each tire sold
so if he sold 12 tires...the profit would be (10 * 12) = 120
