Using addition or multiplication, Teresa has twice a number of wood as Samuel.
According to the question,
Teresa needs twice as many feet of wood as Samuel in order to find the number of pieces of wood Teresa need only if we add the number Teresa has by itself or multiply it by 2.
Hence, we need to do only multiply it by 2
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Answer:
5 ft
Step-by-step explanation:
The triangular face is a right triangle with hypotenuse 13 ft
Use Pythagoras' identity in the right triangle
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
y² + 12² = 13²
y² + 144 = 169 ( subtract 144 from both sides )
y² = 25 ( take the square root of both sides )
y = = 5
The height of the ramp is 5 ft
The answer is 8 because 2x2x2=8
Let's call the larger number a and the smaller number b.
a + b = 22
a - 8 = b
Since we have determined that a - 8 is the same as b, we can substitute it into the original equation:
a + (a - 8) = 22
2a - 8 = 22
2a = 30
a = 15
Now that we have the larger number, let's find the smaller number:
15 - 8 = b
7 = b
Let's see if this is true:
15 + 7 = 22
22 = 22