Let h be the number of lemonade sold. If the vendor sold 86 items today and h of them are lemonade, then the rest are hot dogs, so he sold 86-h hot dogs.
When you add the number of sold lemonade and hot dogs, then you get 86 items in total:
h+(86-h)=86.
This equation is exactly the same as equation
(86-h)+h=86.
Moreover,
1. if a snack cart sells lemonade for $2, then he gets $2h for h sold lemonade;
2. if a snack cart sells hot dogs for $5, then he gets $5(86-h) for (86-h) sold hot dogs.
In total he gets $330, then
2h+5(86-h)=330.
Both these equations are true, but only first is among given options.
Answer: correct choice is B.
Answer: the answer to C is 4,176,000,000,000,000
Step-by-step explanation:
2.9(105)(7.2)(102)
5(10−8)
=
(2.9)(100000)(7.2)(102)
5(10−8)
=
(290000)(7.2)(102)
5(10−8)
=
2088000(102)
5(10−8)
=
(2088000)(100)
5(10−8)
=
208800000
5(10−8)
=
208800000
5(
1
100000000
)
=
208800000
1
20000000
=4176000000000000
Answer:
x = 9
Step-by-step explanation:
............................
Find the square root of both sides
√y²= √(144/169)
y= √144 / √169
y= 12/13
Final answer: y=12/13
