Answer:
common endpoint
Step-by-step explanation:
Step-by-step explanation:
8x2 + 16x + 3 = 0
a is 8 b is 16 c is 3
multiply 8 and 3 = 24
what 2 numbers when multiplied make 24 and when added make 16?
use quadratic formula
a is 8 b is 16 c is 3
x= (-b +- (√b^2-4ac))/2a
x= (-16 +- (√b^2-4(8)(3)))/2(8)
x= (-16 +- (√16^2-96))/16
x= (-16 +- (√256-96))/16
x= (-16 +- (√160))/16
x= (-16 +- (4√10))/16
x= -1 +- (√10/4)
split up the + and -
x= -1 - √10/4 = -0.209431
x= -1 + √10/4 = -1.79057
Answer: 28 Brownies and 38 Cookies
Let say the brownies sold for B amount and cookies for C amount. There were 10 more cookies sold than brownies. If brownies sold X piece then, total sales would be:
Sales: (X+10) C + XB
Total sales is $40. Cookies sold for $0.50 each. Brownies sold for $0.75 each. If you insert it all to the first equation, it would become:
$40= (X+10) x $0.50 + $0.75X
$40= $0.50X + $5 + $0.75X
40= 1.25X + 5
1.25X= 35
X= 35 / 1.25= 28
Brownies sold at 28 pieces. Cookies sold at: 26+10= 38 pieces.
Answer:
(2x+5)in x 3 in =51 in^2
Step-by-step explanation:
First, divide both sides by 3: (2x+5)/3 = 51/3-->2x+5=17
Then, subtract both sides by 5: 2x+5-5 = 17-5-->2x=12
Finally, divide both sides by 2: 2x/2 = 12/2 -->x=6
So, the answer is x=6.
Good luck and I hope this helps!
Answer:
Step-by-step explanation:
Remember that: