Answer:
2x2+4x−1=0
Step-by-step explanation:
I guss
value of x is -3/4
Answer:
b and d
Step-by-step explanation:
Answer:
117
Step-by-step explanation:
Set up the ratio as fractions
(5/8) cup red / (2/5) cup yellow = r amount of red / 1 cup yellow
Then cross multiply the numbers and set up as a equation like this
(5/8) × 1 = (2/5) × r
(5/8) = (2/5)r
Multiply both sides of the equation by (5/2) to get rid of the fraction and solve for r
(5/2) × (5/8) = (2/5)r × <span>(5/2)
25/16 = r
Reduce down to 5/4 or change to a mixed number
1 and 1/4 cups = r</span>
105 = 67 + x
x = 105 - 67
x = 38
