Answer:
10 rows with 6 passengers per row
Step-by-step explanation:
Let x be the number of rows and y the number of passengers per row.
Then we can interpret the story as the following two equations:
xy=60
(x+2)(y-1)=60
Solving these two equations:
y=60/x
(x+2)(60/x-1)=60 (substitute y)
60 - x + 120/x - 2 = 60 (multiply by -x)
x² + 2x - 120 = 0 (factor)
(x-10)(x+12) = 0
x = 10
y = 60/10 = 6
and indeed 10 * 6 = 60 and also 12 * 5 = 60
Beth is not correct because 60-24=40. Therefore there was a loss of -40 fluid ounces
Step-by-step explanation:
- 3² + 4² = 9 + 16 = 25
- 2² + 5² = 4 + 25 = 29
- 10² - 8² = 100 - 64= 36
- √81 = √9² = 9
- √144= √12² = 12
- √225 = √15² = 15
Hope it will help you :)
Mm/ cm
10/1= x/30
Answer 300 mm
The first step is to remove the bracket
(3\4=0.75)
0.75 x 13+-18
then multiplication
then subtraction
