WILL MARK BRAINLIEST WHOEVER GETS IT RIGHT! How do I solve number 12?
1 answer:
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Answer:
Option A. x = 8
Step-by-step explanation:
Please see attached photo.
From the attached photo,
we shall determine the value of y. This can be obtained by using pythagoras theory as illustrated below:
(√80)² = 8² + y²
80 = 64 + y²
Collect like terms
80 – 64 = y²
16 = y²
Take the square root of both side
y = √16
y = 4
Finally, we shall determine the value of x. This can be obtained as follow:
From the attached photo,
x = 2y
but:
y = 4
Therefore,
x = 2y
x = 2 × 4
x = 8
Answer:
17 regular popcorn bags and 23 super size bags.
Step-by-step explanation:
A group of 40 people went to the theme park. While there, each person bought popcorn.
Let the regular popcorn bags be = x
Let the super size bags be = y
................(1)
Next equation becomes:
...............(2)
Multiplying (1) by 6 :
Now subtracting this from (2) we get,
=> y = 23
And x =
=> x = 17
So, there were 17 regular popcorn bags and 23 super size bags that the group bought.