Answer:
False
Step-by-step explanation:
The Pythagorean theorem can only be applied to right triangles.
To measure the length of a school hallway in metric units, you should probaly use meters
42 and 14
explanation:
x+y = 56
x = 3y
Substitute for x in the first equation:
x + y = 56
x = 3y
3y + y = 56
Combine like terms:
4y = 56
Divide both sides by 4:
y = 14
So if y = 14, and x = 3y, then x = 42.
Now substitute for both x and y in both of the original equations to prove they are the correct values.
x + y = 56
x = 42
y = 4
42 + 14 = 56
56 = 56
x = 3y
x = 42
y = 14
42 = 3*14
42 = 42
So the two numbers, x and y, are 42 and 14.
Answer:
$450
Step-by-step explanation:
The sale price is computed from ...
... sale price = original price - discount
where ...
... discount = (original price) × 26%
Putting these together, we get ...
... sale price = (original price) - 0.26×(original price)
... sale price = (original price) × (1 - 0.26) = 0.74×(original price)
Dividing by 0.74, we find ...
... original price = (sale price)/0.74
... $333/0.74 = $450 = original price
