Answer: 9 / 11
That is approximately 0.82
Explanation:
The ratio of two quantities x and y is x divided by y, i.e. the quotient x / y.
So, the ratio of Sylia's work time to Paul's work time is:
Sylvia's work time
---------------------------
Paul's work time
Given that you have the times in mixed units, hours and minutes, you must convert to one of the, either hours or minutes.
If you choose to work with hours, this is the work:
1) Silvia's time: 3 hours and 45 minutes = 3 hours + 45 / 60 hours = 3hours + 0.75 hours = 3.75 hours
2) Paul's work time: 4 hours and 35 minutes = 4 hours + 35/60 hours = 4 hours + 7/12 hours = (48+7)/12 = 55/12 hours ≈ 4.58 hours
3) Ratio:
Sylvia's work time 3.75 hours 3.75*12 45 9
------------------------- = --------------------- = ---------------- = -------- = -----
Paul's work time (55/12) hours 55 55 11
≈ 0.82
You can calculate the ratio using minutes and shall obtain the same result. Look:
1) 3 hours + 45 minutes = 3 * 60 minutes + 45 minutes = 180 minutes + 45 minutes = 225 minutes
2) 4 hours + 35 minutes = 4*60 minutes + 35 minutes = 240 minutes + 35 minutes = 275 minutes
3)
225 minutes 9
----------------- = ------, which is the same result obtained above.
275 minutes 11
Send me a pic of problem please
In the spinner there are eight numbers numbered from 1 to 8.
To solve this problem, we must remember that probability is:
Probability = number of successful events / number of total
events
a. P (even number). There are 4 even numbers, therefore the
probability is:
P (even number) = 4 / 8
P (even number) = ½ = 0.5 = 50%
The probability of getting an even number is 50%.
b. P (a number greater than
3). There are 5 numbers greater than 3, therefore the probability is:
P (number greater than 3) = 5
/ 8
P (number greater than 3) = 0.625
= 62.50%
The probability of getting a number greater than 3 is 50%.
c. P (an odd number). Similar
to the even number, there are 4 odd numbers. Therefore,
The probability of getting an odd number is 50%.
X^2 + 3x + 3 = <span>x^2 + x + 2
2x = -1
x = -1/2
</span><span>y = (-1/2)^2 + (-1/2) + 2
y = 1/4 - 2/4 + 8/4
y = 7/4
answer
</span><span>solution of this system (-1/2 , 7/4)</span>
Answer:
6.6
Step-by-step explanation:
I'm just guessing because it's just adding 1.1 everytime
