In a 3-digit number, the hundreds digit is four more than the units digit, and the tens digit is three less than the sum of the other two digits. If the sum of all three digits in the number is 17, find the three digits. Then find the number.

773

Step-by-step explanation:

Hello,

Let's note the digit a,b and c so that the number we are looking for is a*100+ b*10 + c

a = c + 4

b = (a + c) - 3

a + b + c = 17

I replace a and b in the last equation

c + 4 + (c+4 +c) - 3 + c = 17

c + 4 + c + 4 + c -3 + c = 17

4c + 5 = 17

4c = 17 -5 = 12

c = 12/4 =3

Then, a = 3 + 4 = 7

b = (7+3)-3=7

And the winner is

773

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere