Answer:
The solution is x = 3, y = 2.
Step-by-step explanation:
4x + 6y = 24
15x – 6y = 33 Add these 2 equations:
19x = 57
x = 57/19
x = 3. Now Substitute for x in the original equation:
2(3) + 3y = 12
3y = 12 - 6
2y = 6
y = 2.
Answer:
32 Nickels
Step-by-step explanation:
Given
Coins: Nickels (N) and Dimes (D)
$0.05 = 1 nickel and $0.10 = 1 dime
So, the amount implies:
The number of coin implies:
Required
Determine the number of nickels found
Substitute 14 + N for D in
Collect Like Terms
Solve for N
Hence, he found 32 nickels
Answer:
central angle = 360/24 = 15°
arc length = 15/360 * 2π * 15 = 1.25π = 3.93 feet.
Area of a sector = 15/360 * π * (15)^2 = 9.375π = 29.45 square feet
Hope This Helps! Have A Nice Day!!
Answer:
The formula of the surface area of a cube is 6 x s²
→ s = 9
→ s² = 9²
→ s² = 81
→ 6 x 81 = 486
So, the surface area of the cube is 486 units².