a number is multiplied by 8 and that product is added to 2. The sum is equal to the product of 2 and 25 . Find the number
1 answer:
Answer:
6
Step-by-step explanation:
So we have a number (let's call it x) and it was multiplied by 8 and added by 2. Therefore:
And we are told that the sum is equal to the product of 2 and 25 (or 50). Thus:
To find the number, we just need to find x. Thus, subtract 2 from both sides:
Divide both sides by 8:
And we're done!
So, our original number was 6.
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Answer:
C = 64.145º
Step-by-step explanation:
The Law of Sines is as follows:
=
=
The problem can be draw as the picture attached.
Now, the values of the sides and angles can be substituted into the Law of Sines, and because all parts are equal, only two are needed:
=
Next, cross-multiply:
7sin40º = 5sinC
Then, divide both sides by 5:
= sinC
Finally, take the inverse sin of the left side and convert into a decimal:
C = (
)
C = 64.145
Answer:
Step-by-step explanation:I don't say you have to mark my
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