Answer:
About 21 weeks
Step-by-step explination:
Her bike is 775 dollars. Lets start there.
She will deposit 40 dollars every Friday, or, every week.
With this logic, we would only need 20 weeks. I found this by doing 775/40.
BUT
We have one more complication. Andrea owes 45 dollars to her sister. It is important to note that this is a ONE TIME payback. This is NOT weekly.
Here is how we will do it:
Andrea needs 775(bike)+45(sister)=820 dollars in debt
820/40 a week=20.5 weeks.
Since .5 of a week is 3.5, and I don't think .5 of a day applies here, we will round up and say that andrea will need roughly 21 weeks to earn all the money she needs.
Final answer: 21 weeks
P (greater than or equal to symbol) 7.50
Answer:
hello there! I am mizuki, and I'll be helping you with this problem.
Mean is the average in numbers by the way!
Anyways, the answer is about 14.3
or...
14 1/3
Step-by-step explanation:
14 + 12 + 17 = 43
43 ÷ 3 = 14.333333...
3 19/125
You can take any number, such as 3.152, and write a 1 as the denominator to make it a fraction and keep the same value, like this:
3.152 / 1
To get rid of the decimal point in the numerator, we count the numbers after the decimal in 3.152, and multiply the numerator and denominator by 10 if it is 1 number, 100 if it is 2 numbers, 1000 if it is 3 numbers, and so on.
Therefore, in this case we multiply the numerator and denominator by 1000 to get the following fraction:
3152 / 1000
Then, we need to divide the numerator and denominator by the greatest common divisor (GCD) to simplify the fraction.
The GCD of 3152 and 1000 is 8. When we divide the numerator and denominator by 8, we get the following:
394 / 125
Therefore, 3.152 as a fraction is as follows:
394 / 125
Answer:
The correct options are C and D
Only multiplication by a negative number and division by a negative number changes the inequality sign
Explanation:
Consider the inequality:
This is clearly true that 5 is greater than 2
adding a positive number on both sides would not change the inequality sign, because:
6 is truly greater than 3
Same thing goes with subtracting a negative number, it won't change the inequality sign.
Multiplying by a negative number though,
This is NOT TRUE, because -10 is less than -4, and hence, we change the inequality sign as
Division by a negative number also changes the inequality sign.
In conclusion, only multtplication by a negative number and division by a negative number changes the inequality sign.