Answer:
group A.)220/330
group B.)339/509
Step-by-step explanation:
2/3 of 330 is 220 therefore the people selected in group a to win $100 fuel cards will be 220/330
same thing for group B. 2/3 of 509 is 339 so the answer will be 339/509
(hope i helped:))
Let's group the cubic function:
.
The first two roots are
however to find the last two roots we need to solve the square equation:
. Now we know the discriminator, using the discriminator we're able to find the roots of the equation:
. The roots of the square equation are
and
.
The roots of the cubic function are
,
and
.
Answer:
D. 3b + 2(b + 0.75) = 4.50; $0.60 per pound of bananas, $1.35 per pound of oranges
Step-by-step explanation:
Price per pounds of bananas = b
Price per pound of oranges = b + $0.75
Diego buys:
3 pounds of bananas = 3(b) = 3b
2 pounds of oranges = 2(b + 0.75)
Amount paid by Diego is expressed as:
3b + 2(b + 0.75) = 4.50
To find the price per pound of each fruit, use the equation above to find the value of b:
3b + 2b + 1.50 = 4.50
Combine like terms
5b + 1.50 = 4.50
5b + 1.50 - 1.50 = 4.50 - 1.50
5b = 3
5b/5 = 3/5
b = 0.6
Price per pound of banana = b = $0.6
Price per pound of oranges = b + $0.75
Plug in the value of b
= $0.6 + $0.75
= $1.35
Answer:
0.000000210 x 10^{6}=0.21
