Answer:
1⅕ or 1.2 cups of sugar
Step-by-step explanation:
Flour : Sugar
5 : 2
3 : X
5/2 = 3/X
X = 3×2/5
X = 6/5 cups
1⅕ or 1.2 cups of sugar
(X - 3)+(2x + 8)+(2x) = 180
5x + 5 = 180
5x = 175
X = 35
1 1/6 hrs.....1 hr = 60 minutes......1/6 hr = 1/6(60) = 60/6 = 10 minutes....therefore, 1 1/6 hrs = 70 minutes
(7/8) / 70 = x / 1....7/8 of the wall to 70 minutes = x wall in 1 minute
cross multiply
(70)(x) = (7/8)(1)
70x = 7/8
x = (7/8) / 70
x = 7/8 * 1/70
x = 7 / 560 reduces to 1/80 <== she paints 1/80 of the wall in 1 minute
Answer:
4.4 degrees C.
Step-by-step explanation:
C = 5/9 (F - 32)
When F = 40:
C = 5/9( 40 - 32)
= 5/9 * 8
= 40/9
= 4.4 degrees C,
Y=(x+7)/8
Work:
Y=8x-7 —> x=8y-7
Solve for y
x+7=8y
y=(x+7)/8
