Michael is 17 year older than john.In 4 years,the sum of their ages will be 49.Find Michael's present age.
1 answer:
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The magnitude of vector (-7,-5) =
=
<span>vector as the sum of unit vectors = -7 i - 5 j</span>
=
<span>vector as the sum of unit vectors = -7 i - 5 j</span>
<u>Answer:</u>
<u>Step-by-step explanation:</u>
First set the equation to 0
Second, get the 12 on the right side of the equal sign by adding a -12 to each side
Square root both sides of the equal sign.
Take the square root on left sides of the equal sign.
Take the square root on the right side of the equal sign. Remember
<u>AND</u>
Answer:
1. 8.85 quarts
2. 44.25%
Step-by-step explanation:
In 15 quarts of a solution with percentage of antifreeze = 35%
Amount of antifreeze = 35% × 15
= 0.35 × 15
= 5.25 quarts
that solution is mixed with 5 quarts of a solution with percentage of antifreeze = 72%
Amount of antifreeze = 72% × 5
= 0.72 × 5
= 3.6 quarts
Total amount of mixture = 15 quarts + 5 quarts = 20 quarts
1. Now we will calculate the total amount of antifreeze in the resulting mixture.
= 5.25 + 3.6 = 8.85 quarts
2. The percentage of the resulting mixture is antifreeze
=
= 44.25%
1. total amount of antifreeze is 8.85 quarts
2. the percentage of antifreeze is 44.25%