1 gallon / 200 ft^2 = x gallons / 885ft^2
cross multiply (200 • x, 1 • 885)
200x = 885
x = 4.425 gallons
Answer:
y= 2/7x+ 43/7
Step-by-step explanation:
When finding the y intercept, or B, you should use slope intercept and plug in your coordinate. It should look like this: 7=2/7(3) +b. Multiply 3 and 2/7 to get 6/7. Now, this is your equation: 7=6/7+b. Next, subtract 6/7 from both sides to get 43/7. So, your y-intercept is 43/7. This is your final equation: y= 2/7x+ 43/7. Hope this helped!
Yo i think it's A, due to the fact that the more gallons you have, the more minutes you can drive. hope this helps, have an amazing day :)
Answer:
3/2
rises by 3
runs by 2
I hope this is good enough:
Answer:
-6.13406 and 61.13406
Step-by-step explanation:
x + y = 55
x × y = -375
y = 55 - x
x × (55 - x) = -375
55x -x² = -375
x² - 55x - 375 = 0
solution of a quadratic equation :
x = (-b ± sqrt(b² - 4ac))/(2a)
a=1
b=-55
c=-375
x = (55 ± sqrt(55² + 4×375))/2 = (55 ± sqrt(4525))/2 =
= (55 ± sqrt(25 × 181))/2 = (5×11 ± 5×sqrt(181))/2 =
= 5/2 × (11 ± sqrt(181)) =
= 61.13406... or -6.13406...
y = 55 - 5/2×(11 ± sqrt(181)) = 55/2 ± 5/2×sqrt(181) =
= -6.13406... or 61.13406...
