Answer: n= -9
Step-by-step explanation:
5n-7=-52
5n = -52+7
5n=-45 (divide both sides)
n= -9
Answer: Samir will pay $38.75 in shipping cost.
step one:
divide 15.50 by 20 to figure out how much it is per pound, the answer is 0.775
step two: Multiply 0.775 by 50 to figure out the total price of 50 pounds if each pound is worth $0.775 and you will get the answer!
Answer:7
Step-by-step explanation:
Well we can make the red scarfs 12-x and the white scarfs x. Form this we can construct an equation:
(12-x)5+3x=50
By the way I multipled the amount of red scarfs by 5 becasue of it price and multipled the amount of white scarfs by 3, becasue again it is its price. Form this we get that x is equal to 5 and since the red scarfs is 12-x we can get that the red scarfs are 12-5 which is 7.
No it wouldn’t be possible because the sum of the 3 angles of a triangle equals 180 (A+B+C= 180). If two angles (A and B) are greater than 90, then their sum would be greater than 180. (A+B= 180 +) where DELTA ( or the triangle) is some arbitrarily small positive amount.
Then substituting into eq. 1
A+B+C= 180
180++C = 180
+C= 0
C= -
This shows that the remaining angle (C) would need to be negative to make the sum equal 180.
That's not possible, therefore two obtuse angles would not be allowed in a triangle.