There were 980 student desks originally.
Step-by-step explanation:
Number of desks purchased = 295
Desks bought for teacher = 50
Desks for students = No. of desks purchased - desks bought for teachers
Desks for students = 295 - 50 = 245
This is 1/4 of number of original student desks.
Let x be the number of original student desks.
According to statement;
Multiplying both sides by 4;
There were 980 student desks originally.
Keywords: subtraction, multiplication
Learn more about subtraction at:
#LearnwithBrainly
Answer:
4t^3-t-4
Step-by-step explanation:
(-3t^3-5t)+(7t^3+4t-4)
Combine like terms
-3t^3+7t^3 +4t -5t-4
4t^3 -t -4
Answer:
brainlyist
Step-by-step explanation:
x=5 y=0
x=0 y=3
9514 1404 393
Answer:
(4) 750 < p < 1500
Step-by-step explanation:
The total cost for p people is ...
c = 750 +2.25p
The average cost per person is this total divided by the number of people:
c/p = (750 +2.25p)/p
c/p = (750/p) +2.25
Natasha wants this to be between 2.75 and 3.25:
2.75 < c/2 < 3.25
2.75 < 750/p +2.25 < 3.25 . . . . . . use the expression for c/p
0.50 < 750/p < 1.00 . . . . . . . . . . . subtract 2.25
We can split this to two inequalities to find the limits of p.
<u>Left one</u>
0.50 < 750/p
0.50p < 750 . . .multiply by p
p < 1500 . . . . . . multiply by 2
<u>Right one</u>
750/p < 1
750 < p . . . . . . multiply by p
These bounds on p can be summarized as ...
750 < p < 1500 . . . . matches choice (4)
_____
<em>Additional comment</em>
Once you realize that the fixed costs will be divided by the number of people attending, the maximum cost you want ($1 more than the per-person charge) will set the minimum number of people. To have the $750 fixed cost contribute only $1 to the cost per person, there must be at least 750 people to share that cost. The only answer choice with a 750 person minimum is (4).
