Answer:
Step-by-step explanation:
we have

we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have

so
substitute in the formula
Take the -3/5 and add it to 1/30 which would equal 19/30, so x= 19/30
Answer: $408.96
Step-by-step explanation:
a- 2/5 + 1/4=.65 mixture of red and blue paint
(2/5) / .65 X 1.625=1 gallon of red paint
(1/4) / .65 X 1.625=5/8 gallons of blue paint, because
1 + 5/8=1 5/8 gallons of purple paint.
b-1/10 + 2/5 + 1/4=.75 mixture of white, red and blue paint
***FINAL answer: 1 gallon red, 5/8 gallon blue.***
Answer:
5. 9/2 6. 9/4 7. 7/2 8. 8/3 9. 2/3
Step-by-step explanation:
Hope I helped!!