Answer
Find out the how many minutes are spent preparing.
To proof
As given
A recipe takes 90 minutes to make.
25 percent of the time is spent preparing the ingredients.
25% is written in the decimal form

= 0.25
Time spent in preparing = 0.25 × 90
= 22.5 minutes
Therefore the 22.5 minutes are spent preparing the ingredients.
Hence proved
Answer: 3 (three) .
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Step-by-step explanation:
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Answer: B. 2=3x+10x^2
Step-by-step explanation:
The expression means the quadratic function equation.
B = 10x^2 + 3x -2 = 0
the equation is [-b ±√(b^2 -4ac)]/2a
b should be +3 to become -3 when it is plugged into the equation, and 'a' should be 10, and c should be -2.
Answer:
it's C
Step-by-step explanation: