Answer:
156.25 grams
Step-by-step explanation:
Well, for starters we know that the substance decays by 2% each day and its been decaying for 34 days. Therefore, the substance has decayed by 68%
34 x 2 = 68
Hence, 50 grams is 32% because the substance has already decayed by 68%
100 - 68 = 32
So now we know 50 grams is 32%. Now we need to find how much 100% is.
50 - 32%
X - 100%
We cross multiply.
50 x 100 = 5000
And divide.
5000 / 32 = 156.25
Thus, in the beginning, there were 156.25 grams in the substance.
Hope this helps! :)
It will take 10 people working 10 hours per day about 2.5 days to make 10 units of the product.
From the statement of the question; 15 people working 5 hours per day can make 30 units of a product in 10 days. Hence, the number of units that can be made in a day is;
Number of units per day = (15*5*10)/30
= 25 units/day
Now; if 10 people make 10 units, working 10 hours per day, it will take them x number of days.
x = (25*10)/10*10
x = 2.5 days
Learn more: brainly.com/question/22873736
Answer:
I don't really understand it very well
Step-by-step explanation:
Arrangement according to her priorities are as follow:
1) Finish homework which is due the next day (Tuesday).
2) Prepare for a French test that is due on Thursday.
3) Prepare a science project that is due on the following Monday.
4) Prepare for the algebra test that is on the next friday.
5) Complete her essay that is due in two weeks.
6) Plan a surprise party for her best friend's birthday that is on weekend after next.
Answer:
7
Step-by-step explanation:
Two negatives cancel out, so you divide just like normal 42÷6 is 7
The quotient is 7 (not negative as two negative numbers will cancel)
A. -8
B. 0
C. -10
D. 1