Answer:
Step-by-step explanation:
-4x+20<8
20-8<4x
12<4x
3<x
x>3
Answer:
$15 - 60% = $6.00
https://www.percent-off.com/_30_%25+off_39.98_
(I used this website because I lost my calutor, plus I use it to help my mom shop)
Answer:
the rationalnumbers are A, F, B, D,
The correct equation would be d=40h.
You can test this out by substituting the number of hours into h to find d.
Ex.
h=3 hours
d=40h
d=40(3)
d=120 (this matches up with the distance given in the table for 3 hours
Hope this helps!! :)
Answer:
5 cm
Step-by-step explanation:
Let the shorter side be a, longer side be b, hypotenuse be c
By Pythagorean theorem:
a² + b² = c²
a² + (a + 7)² = (a + 8)²
a² + a² + 14a + 49 = a² + 16a + 64
a² - 2a - 15 = 0
a² + 3a - 5a - 15 = 0
a(a + 3) - 5(a + 3) = 0
(a + 3)(a - 5) = 0
a = -3 or a = 5
Because a is a side length and is a positive number
a = 5