W=2j, m=5w, (m+4)=6(j+4)
using w from first in second you get:
m=5(2j)=10j, m+4=6j+24
m=10j, m=6j+20, since m=m we can say
10j=6j+20
4j=20
j=5, and since m=10j
m=50
So the man is 50 years old
The answer is 2 cm
Step 1. Calculate the height of full cylinder (h1 = ?)
Step 2. Calculate the height of cylinder that contains 314 cm³ of water (h2 = ?)
Step 3. Find <span>the difference between the height of the water in the full cylinder and the height when 314 cm³ of water (h1 - h2 = ?)
The volume (V) of the cylinder with radius r and height h is:
V = </span>π * r² * h
So, h = V / (π * r²)
Step 1.
h1 = ?
V1 = 471 cm³
r = 5 cm
π = 3.14
h1 = V1 / (π * r²)
h1 = 471 / (3.14 * 5²)
h1 = 471 / (3.14 * 25)
h1 = 471 / 78.5
h1 = 6 cm
Step 2.
h2 = ?
V2 = 314 cm³
r = 5 cm
π = 3.14
h2 = V2 / (π * r²)
h2 = 314 / (3.14 * 5²)
h2 = 314 / (3.14 * 25)
h2 = 314 / 78.5
h2 = 4 cm
Step 3.
h1 - h2 = 6 - 4 = 2 cm
Answer:
C
Step-by-step explanation:
He had 0 then he added 227.11 and so he had 227.11 in his bank account then he took out the money so he was back at 0 so the answer is c
4 – 3(x – y) = –8x + 2
Apply distributive property to left side.
4 - 3x + 3y = -8x + 2
Add 8x to both sides.
4 + 5x + 3y = 2
Subtract 4 from both sides.
5x + 3y = -2
<h3><u>The correct answer is C.</u></h3>
8x - 6 - 8 = 4 + 2x
8x - 14 = 4 + 2x
8x = 4 + 2x + 14
8x = 2x + 18
8x - 2x = 18
6x = 18
x = 18/6
x = 3
*Answer is x = 3 because 18/6 is 3 since 3 * 6 = 18.