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Dmitry [639]
3 years ago
6

The line at the bullet roller coaster is moving about 4 feet for every 15 minutes. At this rate, how many hours would it take fo

r a person to travel 24 feet? Set up a proportion and solve.
Mathematics
1 answer:
Brums [2.3K]3 years ago
8 0

Answer:

90

Step-by-step explanation:

4/15 which is our fraction distance/time

our other fraction is 24/x (x is our variable to find our time)

Now we are doing the buultterfly method

set it up

now multiply 4*x= 4x

15*24=360

now divide 4x ÷ 4 to get our variable alone

do the same to the other side

4 ÷ 360= 90

so x= 90 which is our missing number

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To change a recipe that serves 8 to make it serve 5, by what fraction would you multiply each ingredient?
NARA [144]
Let, that fraction = x
So, 8 * x = 5
x = 5/8

In short, Your Answer would be 5/8

Hope this helps!
8 0
3 years ago
Adding/Subtracting rational expressions
Leona [35]
7]
 6/(x-1)-5x/4
subtracting the above we put the fraction under the same denominator:
 6/(x-1)-5x/4
multiplying the denominators we get:
4(x-1)
thus subtracting we get:
6/(x-1)-5x/4
=(4*6-5x(x-1))/[4(x-1)]
=[24-5x^2+5x]/(4x-4)
Answer:
(-5x^2+5x+24)/(4x-4)


9]
3/(x+7)+4/(x-8)
the common denominator is:
(x+7)*(x-8)=(x+7)(x-8)
thus adding the fractions we put them under the same denominator as follows:
[3(x-8)+4(x+7)]/[(x+7)(x-8)]
=[3x-24+4x+28]/[(x+7)(x-8)]
=(7x+4)/[(x+7)(x-8)]

5 0
3 years ago
What is the correct definition of the word bias? a. particular point of view b. a personal or unreasoned judgment c. to study in
wlad13 [49]

Answer:

b. a personal or unreasoned judgment

Step-by-step explanation:

The answer is B because bias is basically something or someone that you favor over anything or anyone else. Or what you belving in your own opion.

As an example, our strong bias in favor for the idea, or a test biased towards people who are excellent at math.

7 0
3 years ago
A set of 6 number cards contains the numbers 2,5,7,8,9, and 11. Which ratio of odd number cards to total cards in the set?
Harlamova29_29 [7]
The ratio would be 4:6 because there are 6 number in total and 4 of them are odd numbers.
6 0
2 years ago
Hello Solving Equations Puzzle ​
ludmilkaskok [199]

Green crescent should be 11
2+2+11=15
Pink trapezoid should be 15
30-15=15
15=15
6 0
3 years ago
Read 2 more answers
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