Answer:
x = 2/3
Step-by-step explanation:
Answer:
28/3 =9.33
Step-by-step explanation:
mark as me brainlist
Answer:
a) Harold
b) Clara
Step-by-step explanation:
Each person has chose a different lunch. Based on this context, it means no one can have the same lunch item.
A explanation)
- Mark must eat soup since he doesn't eat bread (sandwich) or salads.
- Clara must eat salad since Mark is eating the soup and Clara doesn't eat sandwiches.
- Therefore, Harold must eat the only different lunch item; sandwich. Since Harold had the sandwich, he also has the milk.
B explanation)
- The person who had soup had iced tea; meaning Mark drank Iced Tea.
- The person who had the sandwich also had the milk; Harold drank milk.
- The only person missing a drink is Clara, so she ordered mineral water.
Answer:
There were 30 children and 10 adults.
Step-by-step explanation:
Since they sold tickets to adults and childrens, the sum of those tickets must be equal to the total tickets that were sold, so we can mount our first equation as shown below:
adult + children = 40
Each adult ticket costs $9 and each children costs $5 and the total recieved was $240, therefore:
9*adult + 5*children = 240
We can mount the following equation system:
adult + children = 40
9*adult + 5*children = 240
We will multiply the first equation by -5 and sum both equations:
-5*adult -5*children = -200
9*adult + 5*children = 240
4*adult = 40
adult = 40 / 4
adult = 10
adult + children = 40
children = 40 - adult = 40 - 10 = 30
There were 30 children and 10 adults.
7(x - 3) = 4(x + 5)
7x - 21 = 4x + 20
7x - 4x = 20 + 21
3x = 41
x = 41/3
(x - 3) - 2(x + 6) = -5
x - 3 - 2x - 12 = -5
-3x - 15 = -5
-3x = -5 + 15
-3x = 10
x = -10/3
