Answer:
man what is that
Step-by-step explanation:
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Answer:
4 sophomore girls .
Step-by-step explanation:
If a student's gender and class are to be independent when a student is selected at random, two conditions must be met:
n° boys = n° girls
n° freshmen = n° sophomore
Currently, there are 10 boys and 6 girls, thus 4 girls must join.
Currently, there are 10 freshmen and 6 sophomores, thus 4 sophomores must join.
Therefore, 4 sophomore girls must join.
Hey there! I'll try to provide you with my best answer.
Answer: x = 120 and y = 150
(x / y) = (4 / 5)
1) 5x = 4y
( (x + 20 ) / (y - 20) ) = (14 / 13)
cross multiply fractions
13(x + 20) = 14(y - 20)
13x + 260 = 14y - 280
2) 13x - 14y = -540
solve equation 1) for x
x = 4y/5
now substitute for x in equation 2)
13(4y/5) - 14y = -540
multiply both sides of = by 5
52y - 70y = -2700
-18y = -2700
y = 150
x = 4(150) / 5 = 120
x = 120 and y = 150
check answers (proof):
120 / 150 = 12 / 15 = 4 / 5
(120+20) / (150-20) = 140 / 130 = 14 / 13
Answer:
Ashley can type 475 more words than Tristan in 95 minutes.
Step-by-step explanation:
1. Multiply the amount of words Tristan can type per minute (57) times 95 to get 5,415 typed words in 95 minutes.
2. Multiply the amount of words Ashley can type per minute (62) times 95 to get 5,890 typed words in 95 minutes.
3. Next you subtract Tristan's total amount, 5,415 from Ashley's total amount to get the answer: Ashley can type 475 more words than Tristan in 95 minutes.
Hope this helped
Answer:
3x+4
Step-by-step explanation:
3 dollars per mile = 3x
plus 4 dollars for taxi ride.