Set up an equation and solve for x! 25 points!
2 answers:
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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:
Step-by-step explanation:
( Sum of angle in straight line )
Collect like terms
⇒
Calculate the sum or difference
⇒
Move 120 to right hand side hand change it's sign
⇒
Subtract 120 from 180
⇒
Divide both sides of the equation by 4
⇒
Calculate
⇒
Hope I helped!
Best regards!!
Answer:
AC = 12.38 cm
Step-by-step explanation:
When there are 2 pairs given, we can use the sine rule to solve the problem.
By pairs we mean "an angle and side opposite to it"
<em>1 pair is 85.2 degree angle and 13 cm, and another pair is 71.6 degree angle and the side AC (which we want to figure out).</em>
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Sine Rule is given by
where,
A and B are the two respective angles and a and b are the two respective sides (of the pairs). Plugging all the info and using algebra, we have:
Thus, AC = 12.38 cm