Found the problem:
Item Cost Sales Price
T-shirt 6 10
hats 4 7
Let x = t-shirts, y = hats
6x + 4y = 2,000
10x + 7y = 3,375
4y = 2000 - 6x
y = 2000/4 - 6x/4
y = 500 - 3x/2
10x + 7y = 3,375
10x + 7(500 - 3x/2) = 3,375
10x + 3500 - 21x/2 = 3,375
10x - 10.5x = 3,375 - 3500
-0.5x = -125
-0.5x / -0.5 = -125/-0.5
x = 250 shirts
They will need 250 shirts.
Assuming none of the rooms and cats are shared,
5*5*5*5*4 = 2500
To find the area of a regular figure,the formula would be:
s^2(n)/4tan (180/n)
where
s is the length of any side
n is the number of sides
In this case:
12^2(6)/4tan (180/6)
=144/4tan(30)
=144/120tan
≈374.1 in^2 (correct to the nearest tenth)
Hope it helps!
Since, PS and QR are parallel, we know that <QRP is equal to <RPS. Therefore, we can solve for y by setting the two equations equal to each other.
5y+14=8y-13
<em>*Subtract 5y from both sides to isolate the variable*</em>
14=3y-13
<em>*Add 13 to both sides*</em>
27=3y
<em>*Divide both sides by 3*</em>
9=y
Now, plug in 9 for y in the equation 8y-13 to find the measure of that angle.
8(9)-13
<RPS=59
Now, the sum of the angles in any triangle is equal to 180 degrees. We can use this knowledge to set up an equation to solve for x.
3x+2x+1+59=180
<em>*Combine like terms*</em>
5x+60=180
<em>*Subtract 60 from both sides*</em>
5x=120
<em>*Divide both sides by 5*</em>
x=24
Now, we can find <RSP by pluggin 24 in for x.
2(24)+1
48+1
<RSP=49 degrees
Hope this helps!!
The answer is 3n+1
What i did was add the like terms.
-7n+10n= 3n
-7 + 8=1 (the 7 is negative because it's being subtracted)
if you put it together you get 3n+1
hope this helps