Answer:
$20
Step-by-step explanation:
18 ten-dollar bills = 18×10
18×10=$180
He gave 16 of the bills = 16×10
16×10=$160
Now, the question is asking how much money he kept. This refers to the total amount of money, not just how many bills he kept.
(18×10) - (16×10)
180 - 160 = 20
Therefore, Jack kept $20 from selling the tickets.
To find scale we have to prodive common unit, let say inches.
10 foot = 120 inch becauyse 1 foot = 12 inch so
10foot*12=120 ich
Now we know that
8 inch in drawing is 120 in real, so the scale is 8:120 or
- its the result
Answer:
(0.392 ; 0.508)
Step-by-step explanation:
Given that :
p = 45% = 0.45
α = 1 - 90% = 0.1
Zα/2 = Z0.01/2 = Z0.05 = 1.645 (from Z standard table).
Using the relation :
p ± Z0.05*sqrt((p(1-p))/n)
p ± 1.645 * sqrt(0.45(0.55)/200)
p ± 1.645 * sqrt(0.0012375)
p ± 1.645 *0.0351781
0.45 - (1.645 * 0.0351781) = 0.3921320255
0.45 + (1.645 * 0.0351781) = 0.5078679745
(0.392 ; 0.508)
With which question?? All I see is that caption
