Answer:
The probability that I mist sample 5 12-year-olds to find the first one who can pick out Colorado on a map is 1.
Step-by-step explanation:
The research suggests that about 24% of 12-year-olds in the US can pick out the state of Colorado on a map. The probability always exceeds the probabilities of picking out 1 over 5 12-year-olds, which is 20%, in a sample is well-represented the 12-year-old population of the US. Hence, the answer is 1 (or 100%).
Answer:
Popcorn cost $1 each
Drinks cost $5.25 each.
Step-by-step explanation:
Let the price of each popcorn be X
And the price of the same drink be y
Statement one translates to;
8x + 5y = 34.25-----------------------------(1)
Statement for Elijah translate to;
2x + 8y = 44-----------------(2)
x = 22- 4y [ dividing through by 2 and making X the subject formula]----------(3)
Substitute (3) in (1); we have :
8 ( 22-4y) + 5y = 34.25
176 -32y + 5y = 34.25
176-34.25 = 32y-5y
141.75= 27y
y= 141.75/ 27 =5.25
From, (3)
x= 22- 4(5.25)= 22-21 =1
Answer:
5 hours
Step-by-step explanation:
because every hour she runs 4 miles so in 3 hours she will run 12 miles.
so 20 she would run 5 miles.
4 miles=1 hour
8 miles=2 hours
12 miles=3 hours
16 miles=4 hours
20 miles=5 hours.
Hope this helps have a great day:)
We can turn this into an equation.
if x stands for the number you are looking for, then
18 + 1/4 x = x
we can solve this equation
18 + 1/4 x = x
subtract 1/4x from both sides
18 = 3/4 x
divide both sides by 3/4
24 = x
