There are three unknowns in this problem. First, let's assign variables for these unknowns.
Let
x be the amount received by the first friend
y be the amount received by the second friend
z be the amount received by the third friend
Next, we formulate equations for the relationships
x = 4z
z = 4y
x + y + z = <span>$231,000
Solving simultaneously,
4(4y) + y + 4y = </span><span>$231,000
21y = </span><span>$231,000
y = $11,000
z = 4($11,000) = $44,000
x = 4($44,000) = $176,000</span>
Answer:
x = 26 , y = 33
Step-by-step explanation:
3x + 2y = 144 (1)
2x + 5y = 217 (2)
3x + 2y = 144
(divide the equation by 3)
x + (2/3)y = 48
x = 48 - (2/3)y
Plug into (2)
2[48 - (2/3)y] + 5y = 217
96 - (4/3)y + 5y = 217
11y/3 = 217 - 96
11y/3 = 121
y = 121×3/11
y = 33
x = 48 - (2/3)y
x = 48 - (2/3)(33)
x = 48 - 22
x = 26
Answer:
I believe the answer is 0.07! I hope that helps
Answer:
1,187 bu/hr
Step-by-step explanation:
4.8 mi/hr
240 inches
Efficiency: 85% (0.85)
120 bushels/acre
1 acre = 6 272 640
1 mile = 63 360 inches
4.8 miles = 304 128 inches
120/6 272 640 x 240 = 5/1089 (bushels/inch)
5/1089 x 304 128 x 85% = 1 186.9 = 1187 bu/hr
Wow, that's hard for me :) Hope it's helpful
i + -
i + -7