Answer:
81
Step-by-step explanation:
just do it step by step adding them together.
heather can do 2 problems in 10 minutes....60 minutes in an hr
2/10 = x / 60...2 problems to 10 min = x problems to 60 min
10x = 120
x = 120/10
x = 12....so she can do 12 problems in 1 hr
Joel can complete 3 problems in 15 minutes...
3/15 = x / 60
15x = 180
x = 180/15
x = 12....so he can do 12 problems in 1 hr
so 24 problems can be done in 1 hr
Heather started with 3 problems done and Joel started with 2 problems done....added = 5 problems already done
and it is asking between 30 and 50 hrs.....so there is no equal sign in ur problem
ur answer is : 30 < 24x + 5 < 50 <==
Answer:
you have to round down because if you round up she wouldn't have enough money. And you can't buy half a book.
Step-by-step explanation:
Answer: (4x-1)(3x+2)
Step-by-step explanation:
do u know how to factor?
Answer:
$5000 is how much he borrowed or the "principle" amount.
Step-by-step explanation:
The formula for simple interest is: I = p * r * t
where I = the interest charged, p = principle or amount borrowed, r = the annual rate charged (changed from a percent to decimal by dividing by 100) and t = time (must be expressed in year)
So, I = prt
750 = p * .05 * 3 (here, 3 * .05 = 0.15)
<u>750</u> = <u>0.15p</u> (now you need to solve for p by dividing both sides of the
0.15 0.15 equation by .15
5000 = p
So the amount borrowed is $5000
