Your answer is A. 15
6a+10 = 3a+ 55
6(15) + 10 = 3(15) + 55
6x 15 = 90 + 10 = 100
3 x 15 = 45 + 55 = 100
hope this helps
Answer:
D
Step-by-step explanation:
Let's call the width of the yard x and the length x + 3½. Since we know that perimeter = 2 * (width + length) and that the perimeter must be 26 we can write:
2 * (x + x + 3½) = 26
x + x + 3½ = 13
2x + 3½ = 13
2x = 9½
x = 4
Answer:
nope
Step-by-step explanation:
.42*78 is 32.76, not 45
Answer:294
Step-by-step explanation: you’re trying to find the surface area of the cube to find out how much material Daria needs. To do so find the area of 1 face of the cube (which is a square). The problem gives us 1 side of the square as 7cm. A square has the same length for its 4 sides, so to find the area of that 1 face do 7 x 7=49. The question also gives the hint that a cube has 6 faces so you would multiply the 49 by 6 to get the total surface area of the cube. 49 x 6=294.
Not sure if this is right but hope it helps.
Answer:
Step-by-step explanation:
The answer is going to be 1,462.5$. And that's because 9.75% of 500$=48.75$. So we just multiply 48.75 by 30 which signifies 30 years. So the workout gives us the solution; 48.75*30=1,462.5.