Answer:
3 dimes
Step-by-step explanation:
Part A: 0.10x + 0.25 = 0.80 (dimes are 10 cents or 0.10 dollars, quarters are 0.25 dollars)
Part B: Plug in what you DO know and solve the one you DON’T:
0.10x + 0.25(2) = 0.80
0.10x + 0.50 = 0.80. Subtract 0.50 from both sides:
0.10x = 0.30 (Divide both sides by 0.10)
x = 3
Answer: 6
Step-by-step explanation:
3/4 x 12 =36/4
12 x 1/2=6
Answer:
rs 38.
Step-by-step explanation:
Total cost of the 80 books = 80*30 = rs 2400.
He had 60 books to sell and made a 5% loss.
Thus his income from these books was 2400 - 0.05*2400 = rs 2280.
So the selling price of each book was 2280 / 60 = rs 38.
Answer:
∠3≅∠1
∠4≅∠8
∠3& ∠8 are supplementary
Step-by-step explanation:
Answer:
See below ~
Step-by-step explanation:
Finding the distance of each side length :
- AB = √(3 - 0)² + (0 - 4)² = √9 + 16 = √25 = 5
- BC = √(7 - 3)² + (3 - 0)² = √16 + 9 = 5
- CD = √(4 - 7)² + (7 - 3)² = √9 + 16 = 5
- DA = √(4 - 0)² + (7 - 4)² = √16 + 9 = 5
- All sides are equal
- Hence, it is a square
Perimeter :
- 4 x side length
- 4 x 5
- 20 units
Area :
- (side length)²
- (5)²
- 25 square units
